Question

Find the area of the shade regions. Give your answer as a completely simplify exact value in terms of pie(no approximation). a=

Answer 1

125.6 in²

Explanation:

Area shaded :

• 2 × Sector (72°)
• 2 x πr² x θ/360
• 2 x 3.14 x 100 x 72/360
• 6.28 x 100 x 1/5
• 20 x 6.28
• 125.6 in²