Question

If the area of a semicircle is 308cm^2 .find the length of its diameter

Answer 1

Answer:

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Answer 2

Length of the diameter of the semicircle is 28 cm.

• Given:

Area of semicircle = 308 cm²

• Formula to compute area of semicircle is πr²/2.

308 = πr²/2

616 = (22/7)r²

196 = r²

r = 14

• Radius of the semicircle is 14 cm.

• Therefore, diameter of the semicircle = 2r = 2×14 = 28 cm.