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Mathematics 15 Online
OpenStudy (anonymous):

find the are of a semicircle(half a circle) that has a radius of 2.5m to 2d.p. why answer is 9.81m^2

OpenStudy (xapproachesinfinity):

well just find the area of a circle and then divide by 2 to get half the area

OpenStudy (anonymous):

Can you please explain step by step?

OpenStudy (xapproachesinfinity):

a radius of 2.5m to 2d.p. what do you mean here? by to 2d.p

OpenStudy (anonymous):

Ive got it! thanks

OpenStudy (xapproachesinfinity):

alright! you welcome

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