The largest triangle is inscribed in a semi-circle of radius 7 cm. Find the area
inside the semi-circle which is not occupied by triangle.
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Answer:
area of ∆ = ½ b × h
= ½ × 14 × 7
= 49cm²
area of a semicircle = ½ (π r²)
= ½ (22/7 × 7 × 7)
= ½ × 154
= 77cm²
Therefore,
the area leftout will be = (77 - 49)cm²
= 18cm²
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