Mathematics: A net of a building block is shown below. What is the total surface area of the building block

A net of a building block is shown below. What, №11925154, 16.05.2021 17:16

Biology

Ineed noww i will give the brain of multiple choice 1. which of the following is true about the electric charges on the objects below? (1 point) the ball on the right has a positive charge and the ball on the left has a negative charge. the ball on the left has a positive charge and the ball on the right has a negative charge. the balls do not have any electrical charge. the balls both have the same electrical charge. 2. which of the following is true about the metal boxes pictured below? (1 point) the magnetic force will be strongest on box

Step-by-step answer

P Answered by Specialist

12

1. c

2. a

3. d

4. c

5. b

6. a

7. a

8. c

9. d

10. c

11. a

12. b

13. d

14. d

Explanation:

Biology

Ineed noww i will give the brain of multiple choice 1. which of the following is true about the electric charges on the objects below? (1 point) the ball on the right has a positive charge and the ball on the left has a negative charge. the ball on the left has a positive charge and the ball on the right has a negative charge. the balls do not have any electrical charge. the balls both have the same electrical charge. 2. which of the following is true about the metal boxes pictured below? (1 point) the magnetic force will be strongest on box

Step-by-step answer

P Answered by Specialist

12

1. c

2. a

3. d

4. c

5. b

6. a

7. a

8. c

9. d

10. c

11. a

12. b

13. d

14. d

Explanation:

Mathematics

Craign has a building block in the shape of a rectangular pyramid .A net of which is shown below.If a measures 12 cm b measures 6 cm and d measures 13 cm what is the surface area of the rectangular pyramid

Step-by-step answer

P Answered by PhD

Option D) 294 sq cm is correct∴ the surface area of the rectangular pyramid is 294 sq cm

Step-by-step explanation:

First we have to split the net into 4 triangles and 1 rectangle

Given a = 12 cm ,b = 6 cm and d = 13 cm

To find the surface area of the rectangular pyramid:

Now find the area of the rectangle base

$Rectangle base area=b\times a$

$= 6\times 12$

= 72 sq. cm

∴ Rectangle base area=72 sq cm

Now to find the area of the triangle on the left

$Left triangle=\frac{1}{2}(b)(d)$

$=\frac{1}{2}(6)(13)$

= 39 sq cm

∴ Left triangle=39 sq cm

Since all the triangles are congruent , you will need to multiply by 2 to get the combined area of the triangle on the left and on the right.

Area of left and right triangles= 2(39)

=78 sq cm

∴ Area of left and right triangles=78 sq cm

Find the area of the triangle on the bottom

$Bottom triangle area=\frac{1}{2}(a)(a)$

$=\frac{1}{2}(12)(12)$

= 72 sq cm

∴ Bottom triangle area=72 sq cm

Since the bottom of the triangle is congruent to the top triangle, multiply that by 2 to get a combined area of the triangle on the bottom and top

Area of top & bottom triangles=2 (72)

= 144 sq cm

∴ Area of top & bottom triangles= 144 sq cm

Finally add the area of the 4 triangles to the area of the rectangular base we get

=72 + 78 + 144

= 294 sq cm

∴ the surface area of the rectangular pyramid is 294 sq cm∴ option D) 294 sq cm is correct.

Mathematics

Craig has a building block in the shape of a rectangular pyramid. a net of which is shown below. if a measures 12 cm, b measures 6 cm, and d measures 13 cm, what is the surface area of the rectangular pyramid? a. 183 sq cm b. 936 sq cm c. 516 sq cm d. 294 sq cm

Step-by-step answer

P Answered by PhD

2

the answer is D: 294 sq. cm

Step-by-step explanation:

first you want to split the net into 4 triangles and 1 rectangle

a = 12 cm

b = 6 cm

d = 13 cm

calculate the surface area of the pyramid...

1st find the area of the rectangle base

Rectangle base area

b x a = (6 cm) (12 cm)

= 72 sq. cm

next find the area of the triangle on the left

Left triangle

1/2(b)(d) = 1/2 (6 cm)(13 cm)

= 1/2 (78 sq cm)

= 39 sq. cm

Since all the triangles are congruent (same), you will need to multiply by 2 to get the combined area of the triangle on the left and on the right.

Area of left & right triangles

= 2 (39 sq. cm)

= 78 sq. cm

Find the area of the triangle on the bottom

Bottom triangle area = 1/2 (a)(a)

= 1/2 (12 cm) (12 cm)

= 1/2 (144 sq. cm)

= 72 sq. cm

Since the bottom of the triangle is congruent to the top triangle, multiply that by 2 to get a combined area of the triangle on the bottom and top

Area of top & bottom triangles

2 (72 sq. cm) = 144 sq. cm

Finally...add the area of the 4 triangles to the area of the rectangular base

72 + 78 + 144 = 294 sq. cm

Mathematics

Craign has a building block in the shape of a rectangular pyramid .A net of which is shown below.If a measures 12 cm b measures 6 cm and d measures 13 cm what is the surface area of the rectangular pyramid

Step-by-step answer

P Answered by PhD

Option D) 294 sq cm is correct∴ the surface area of the rectangular pyramid is 294 sq cm

Step-by-step explanation:

First we have to split the net into 4 triangles and 1 rectangle

Given a = 12 cm ,b = 6 cm and d = 13 cm

To find the surface area of the rectangular pyramid:

Now find the area of the rectangle base

$Rectangle base area=b\times a$

$= 6\times 12$

= 72 sq. cm

∴ Rectangle base area=72 sq cm

Now to find the area of the triangle on the left

$Left triangle=\frac{1}{2}(b)(d)$

$=\frac{1}{2}(6)(13)$

= 39 sq cm

∴ Left triangle=39 sq cm

Since all the triangles are congruent , you will need to multiply by 2 to get the combined area of the triangle on the left and on the right.

Area of left and right triangles= 2(39)

=78 sq cm

∴ Area of left and right triangles=78 sq cm

Find the area of the triangle on the bottom

$Bottom triangle area=\frac{1}{2}(a)(a)$

$=\frac{1}{2}(12)(12)$

= 72 sq cm

∴ Bottom triangle area=72 sq cm

Since the bottom of the triangle is congruent to the top triangle, multiply that by 2 to get a combined area of the triangle on the bottom and top

Area of top & bottom triangles=2 (72)

= 144 sq cm

∴ Area of top & bottom triangles= 144 sq cm

Finally add the area of the 4 triangles to the area of the rectangular base we get

=72 + 78 + 144

= 294 sq cm

∴ the surface area of the rectangular pyramid is 294 sq cm∴ option D) 294 sq cm is correct.

Mathematics

Craig has a building block in the shape of a rectangular pyramid. a net of which is shown below. if a measures 12 cm, b measures 6 cm, and d measures 13 cm, what is the surface area of the rectangular pyramid? a. 183 sq cm b. 936 sq cm c. 516 sq cm d. 294 sq cm

Step-by-step answer

P Answered by PhD

2

the answer is D: 294 sq. cm

Step-by-step explanation:

first you want to split the net into 4 triangles and 1 rectangle

a = 12 cm

b = 6 cm

d = 13 cm

calculate the surface area of the pyramid...

1st find the area of the rectangle base

Rectangle base area

b x a = (6 cm) (12 cm)

= 72 sq. cm

next find the area of the triangle on the left

Left triangle

1/2(b)(d) = 1/2 (6 cm)(13 cm)

= 1/2 (78 sq cm)

= 39 sq. cm

Since all the triangles are congruent (same), you will need to multiply by 2 to get the combined area of the triangle on the left and on the right.

Area of left & right triangles

= 2 (39 sq. cm)

= 78 sq. cm

Find the area of the triangle on the bottom

Bottom triangle area = 1/2 (a)(a)

= 1/2 (12 cm) (12 cm)

= 1/2 (144 sq. cm)

= 72 sq. cm

Since the bottom of the triangle is congruent to the top triangle, multiply that by 2 to get a combined area of the triangle on the bottom and top

Area of top & bottom triangles

2 (72 sq. cm) = 144 sq. cm

Finally...add the area of the 4 triangles to the area of the rectangular base

72 + 78 + 144 = 294 sq. cm

Mathematics

Neil places £2000 in a bank account that pays 1.5% simple interest per year. How much interest will he earn in 6 years?

Step-by-step answer

P Answered by PhD

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

Mathematics

You can buy jars of the same jam in 2 sizes large jar:440g for £1.54 small jar:340g for £1.26 By considering the price per gram, work out which jar is the best value for money. Working must be shown

Step-by-step answer

P Answered by PhD

Answer: 440 grams for 1.54 is the better value
Explanation:
Take the price and divide by the number of grams
1.54 / 440 =0.0035 per gram
1.26 / 340 =0.003705882 per gram
0.0035 per gram < 0.003705882 per gram

Mathematics

The last time Robert filled up his car with gas, he paid $24.50 for 7 gallons. This time, he needs 15 gallons. If the price is the same, how much will he pay?

Step-by-step answer

P Answered by PhD

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

Mathematics

Use the X method to find the solutions of6x2 + 2x – 20 = 0.

Step-by-step answer

P Answered by PhD

The answer is in the image

A net of a building block is shown below. What is the total surface area of the building block

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