Question
Find the area of a circle whose radius is (4/5)ᵗʰ of the
side of a square whose area is 2,025 cm². (Use π = 3.14)Solution
ATQ,
Area of square = side²
⇒ side² = 2,025
⇒ side = √2025 = 45 cm
Radius = (4/5) × 45 = 36 cm
Area of circle = 3.14 × 36² = 3.14 × 1,296 = 4,069.44 cm²
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