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July 23, 2014

July 23, 2014

Posted by **Thomas** on Sunday, January 5, 2014 at 5:27pm.

a. 6 pi cm^2

b. 9 pi cm^2

c. 12 pi cm^2

d. 18 pi cm^2

e. 36 pi cm^2

please answer and explain

- math -
**Steve**, Sunday, January 5, 2014 at 6:37pmsince a = bh/2, we have

h = 2a/b = 2*15/5 = 6

for a circle, a = pi r^2 = 9pi

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