Jackmcvay14
14.09.2020 •
Mathematics
What is the area of a semi circle
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Ответ:
So the area of half of it would be (1/2) (pi) (radius²) .
If you don't know the radius, then you can use the formula
Area = (1/8) (pi) (diameter²) .
Ответ:
х=128*100/32=400 - it is the answer