A triangle ABC is inscribed in a circle with centre O.
AC is the diameter passing through O. AC is 20 cm, BC
is 12 cm and ∠B = 90°. Find the area of the circle.
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Answer:
Radius of the Circle = 20/2 = 10
Area of the Circle = πr²
= 22/7 × 10²
= 22/7 × 100
= 2200/7
= 314.28 cm²
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