<span>Arc length = C*(21/360)
so the answer is D</span>
20 and 2
20 - 2 = 18
......................................
Answer:
213.75
Step-by-step explanation:
95×9=855
855÷4=213.75
Area of the wall = 8 x 19 = 152 ft square
Area of the window = 4 x 5 = 20 ft square
Area of 3 windows = 20 x 3 = 60 ft square
The percent area of 3 windows from area of the wall = 60/152 or approximately .395 or 39.5%