bra123
bra123
01-03-2017
Mathematics
contestada
please help me!!!!!!!!!
Respuesta :
haruyoshida91
haruyoshida91
01-03-2017
use the formula for finding the area of a semi circle
pi * r^2
the radius is half the diameter, the diameter is given because a rectangle has 2 pairs of equal sides
1) pi * 2.5^2=pi* 6.25
2) pi * 7^2= pi* 49
Answer Link
student555
student555
01-03-2017
area rectangle=70cmsq
area small hemisphere=235.5cmsq
area big hemisphere=1846.32cmsq
adding all
2151.82 cmsq
Answer Link
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