Mathematics
kik1
20

plz plz plz help me thx

+2
(2) Answers
Sofia50

Formula for area - radius squared times pi ( 3.14 or 22/7 ) 40 * 40 = 160 * 3.14 = 502.4 502.4 / 2 = 251.2 251.2 is the area of the semicircle.

alyjo

3.14 * 1600 = ? then divide that by two then you are done :)

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