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Can u help me on question 9,10,11 please i will help u next what u need if u answer this questions

Can u help me on question 9,10,11 please i will help u next what u need if u answer-example-1

1 Answer

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9) A=1/2 b x h
b=2h
a=64
64=1/2 x 3h
we divide both sides by 2 to get rid of the fraction so it will be:
128=3h
h=42.6
b=2 x 42.6
b=85.3

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