Answer:
About 30.904 cm.
Step-by-step explanation:
The equation is A=1/2(a+b)h
Where A=22.2
B=8.52
C= 9.86
Explain why a change from 20 to 40 is a 100% increase, but a change from 40 to 20 is a 50% decrease.
then you want to do 3.14 x 17×17 = .... then add them both and you got the area
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