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05-07-2017
Mathematics

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The area of a trapezoid is A=0.5(b1+b2)h find b1

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mreijepatmat mreijepatmat

06-07-2017

A= 0.5(b₁ + b₂).h, or
A =0.5.h(b₁ + b₂): divide both sides by 0.5 x h

A/(0.5 x h) = b₁ +b₂, subtract b₂ from both sides:

A/(0.5 x h) - b₂ =b₁ OR ↔(A - 0.5 x h x b₂)/0.5 x h =b₁
BOTH ARE VALID

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