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A semicircle has radius 8.2 cm.
Work out the area of this semicircle.
Take a to be 3.142 and give your answer to 1 decimal place.

Answer 1

Area = 105.6 square cm

Explanation:

`Area \ of \ circle = \pi r^2\\Area \ of \ semi-circle = (1)/(2) \pi r^2 = (1)/(2) * 3.142 * 8.2^2 = 105.6cm^2`