06.08.2020

A rectangular prism is 3 inches long, 5 inches wide, and has a height of 6 inches. What is its surface area? 63 in 2

90 in 2

120 in 2

126 in 2

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24.06.2023, solved by verified expert
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D) 126 in²

Step-by-step explanation:

A rectangular prism is 3 inches long, 5 inches wide, and has a height of 6 inches. What is its surface area?

The formula for the surface area of a rectangular prism =

A=2(wl+hl+hw)

Where

W= Width = 5in

H = Height = 6 in

l = Length = 3 in

Surface area =

2(5 × 3 + 6 × 3 + 5 × 6) square inches

2(15 + 18 + 30) square inches

2(63) square inches

= 126 square inches (in²)

Option D is correct

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Mathematics
Step-by-step answer
P Answered by PhD

D) 126 in²

Step-by-step explanation:

A rectangular prism is 3 inches long, 5 inches wide, and has a height of 6 inches. What is its surface area?

The formula for the surface area of a rectangular prism =

A=2(wl+hl+hw)

Where

W= Width = 5in

H = Height = 6 in

l = Length = 3 in

Surface area =

2(5 × 3 + 6 × 3 + 5 × 6) square inches

2(15 + 18 + 30) square inches

2(63) square inches

= 126 square inches (in²)

Option D is correct

Mathematics
Step-by-step answer
P Answered by Specialist

the answer is D.126

Step-by-step explanation:

Use the formula A=2(wl+hl+hw)

Mathematics
Step-by-step answer
P Answered by Specialist
Do 3×5×6 (I think) try Googleing the formula for surface area of a rectangular prism
Mathematics
Step-by-step answer
P Answered by PhD
SA=2(LW+LH+WH)
SA=94
L=3
W=4
94=2(3*4+3H+4H)
divide both sides by 2
47=3*4+3H+4H
47=12+7H
minus 12 both sides
35=7H
divide oth sides by 7
5=H

5m
Mathematics
Step-by-step answer
P Answered by PhD

The whole castle can hold 63 in² of sand.

Step-by-step explanation:

First, find the volume of the first mold.

V = whl          Substitute

V = (6)(2)(4)    Multiply

V = 48 in²

Now, find the volume of the second mold.

V = whl          Substitute

V = (5)(1)(3)    Multiply

V = 15 in²

Add together both volumes to find the volume of the whole castle.

48 + 15 = 63 in²

Mathematics
Step-by-step answer
P Answered by PhD

The whole castle can hold 63 in² of sand.

Step-by-step explanation:

First, find the volume of the first mold.

V = whl          Substitute

V = (6)(2)(4)    Multiply

V = 48 in²

Now, find the volume of the second mold.

V = whl          Substitute

V = (5)(1)(3)    Multiply

V = 15 in²

Add together both volumes to find the volume of the whole castle.

48 + 15 = 63 in²

Mathematics
Step-by-step answer
P Answered by PhD

the height of bag b is 7

Step-by-step explanation:

first, find the volume of bag a.

volume formula:

length * width * height = volume

length = 4

width = 3.5

height = 6

substitute the values into the formula

4 * 3.5 * 6 = volume

84 = volume

the volume of bag A is 84

next, find the height of bag b

volume formula:

length * width * height.

length = 8

width = 3

volume = 168 (84 * 2)

8 * 3 * h = 168

24h = 168

24h/24 = 168/24

h = 168/24

h = 7

the height of bag B is 7

Mathematics
Step-by-step answer
P Answered by PhD
To find how much space remains in the box, you will find the total space of the box by finding the volume of it.  Then you will subtract the volumes of the 2 triangular prisms.  The remaining would be the extra space.

Volume of Rectangular Prism  -  2(Volume of the Triangular Prism)
Bh                        -                     Bh
(3 x 6 x 4)             -                   2 [(1/2 x 2 x 5) x 3]
72 cubic feet     -                 30 cubic feet
42 cubic feet

There are 42 cubic feet of space remaining.
Mathematics
Step-by-step answer
P Answered by PhD
To find how much space remains in the box, you will find the total space of the box by finding the volume of it.  Then you will subtract the volumes of the 2 triangular prisms.  The remaining would be the extra space.

Volume of Rectangular Prism  -  2(Volume of the Triangular Prism)
Bh                        -                     Bh
(3 x 6 x 4)             -                   2 [(1/2 x 2 x 5) x 3]
72 cubic feet     -                 30 cubic feet
42 cubic feet

There are 42 cubic feet of space remaining.

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