Question

OA and OB are mutually perpendicular radii of a circle find the area of minor segment if the perimeter of corresponding minor sector is 20 cm

Answer 1

Hi friend,

Here is your answer,
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Ф/360  *2πr = 20
r = ²⁰*⁷*³⁶⁰/₂₂*₂*₉₀
r = ¹⁴⁰/₁₁ OR 12.7

Area = Ф/₃₆₀ * πr²
         = ⁹⁰/₃₆₀ * ²²/₇ * (¹⁴⁰/₁₁)²
         = 127.2727.... cm²
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