Q. 975.0( 3 Votes )

Find the area enclosed by each of the following figures :


Answer :

We know that, area of triangle = × b × h


And area of semicircle = × ∏r2


Radius of the semicircle = 10 cm


Area of semicircle = × × 10 × 10 = cm2 = 157.14 cm2


Base of triangle = diameter of the semicircle = 2 × 10 = 20 cm


Height of the triangle = 17 – r = 17 – 10 = 7 cm


Area of triangle = × 20 × 7 = 70 cm2


Total area = Area of semicircle + Area of triangle = 157.14 + 70 = 227.14 cm2


Total area = 227.14 cm2


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