Question

What is the approximate area of the shaded region?

Answer 1

383 cm²

Explanation:

⇒ Area of the figure = Area of the circle - Area of the 5-sided polygon (pentagon)

Finding P (Perimeter of the Pentagon)

• P = 5(21.2)
• P = 106 cm

Finding Area

• A = πr² - 1/2Pa
• A = 3.14 x (19.8)² - 1/2 x 106 x 16
• A = 3.14 x 392.04 - 53 x 16
• A = 1231.0056 - 848
• A = 383.0056 ≅ 383 cm²