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Find the area of this sector. 19cm length on side 118degree angle in centre
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4 votes
Find the area of this sector.
19cm length on side 118degree angle in centre

User Obenjiro
by
7.6k points

1 Answer

2 votes

Answer:

  • 87.68 cm²

Explanation:

Arc length:

  • 118*2πr/360 = 19 cm
  • 118*3.14r/180 = 19
  • r = 19*180/118*3.14
  • r = 9.23 cm

Area of sector:

  • A = πr²*118/360
  • A = 3.14*9.23²*118/360
  • A = 87.68 cm²
User Uladz Kha
by
7.9k points
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