Question
Calculate the area of a circle whose radius is (7/8)ᵗʰ
of the side of a square whose area measures 1,600 cm². (Take π = 3.14)Solution
ATQ,
Area of square = side²
So, side² = 1,600
Or, side = ±40
But side cannot be negative. So, side = 40 cm
Radius of circle = (7/8) × 40 = 35 cm
Area of circle = π × radius²
Therefore, required area = (3.14) × 35² = 3,846.5 cm²
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