Dawson14
Dawson14
23-02-2017
Mathematics
contestada
Please help if u can
Respuesta :
apologiabiology
apologiabiology
23-02-2017
half circle so 1/2 times area
area=pir^2
d/2=r
d=5
5/2=2.5=r
area=pi2.5^2=6.25pi=19.625
times 1/2 to find half area
1/2 times 19.625=9.8125
hundreth
9.81 m²
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