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

Find the area of the shade regions. Give your answer as a completely simplify exact-example-1
User Toliveira
by
2.7k points

1 Answer

22 votes
22 votes

Answer:

41.87 cm²

Explanation:

Area of shaded region :

  • Area (sector of radius 7 cm) - Area (sector of 3 cm)
  • π × θ/360° (r₁² - r₂²)
  • 3.14 x 120/360 (49 - 9)
  • 3.14 x 1/3 x 40
  • 125.6/3
  • 41.87 cm²
User Dustin Hoffner
by
3.3k points