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The circumference of a circle is 440 cm. The area of square inscribed in the circle is:1). 9750 cm22). 9720 cm23). 9600 cm24). 9800 cm2 |
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Answer» CIRCUMFERENCE of CIRCLE = 2πr, where r is the RADIUS of circle. ⇒ 2πr = 440 ∴ r = 440/2π = 70 cm ⇒ Diameter of the circle = 2r = 140 cm Diameter of circle = DIAGONAL of the square ⇒ √2a = 140 ∴ a = 140/√2 ⇒ Area = a2 = 9800 cm2 |
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