74 in²
Step-by-step explanation:
Area of semicircle :
(πr²) ÷ 2
r = 3
(π * 9) / 2 = 14.137 in²
Area of triangle :
1/2 * base * height
Base = diameter = radius * 2 = 3 * 2 = 6
height = 4 inches
1/2 * 6 * 4 = 12in²
Area of rectangle :
Length * width
8in * 6 in
= 48 in²
Total area of pencil :
(14.137 + 12 + 48) in²
= 74.137 in²