The formula for the area of a trapezoid is A=h(b1+b2). Express b1 in terms of A, h, and b2.

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13-05-2015
Mathematics

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The formula for the area of a trapezoid is A=h(b1+b2). Express b1 in terms of A, h, and b2.

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mumsy mumsy · Answer 1 · 2015-05-13T22:10:44-04:00

mumsy mumsy

13-05-2015

In order to find b1 from your formula stated we need to do few calculations
A=hb1+hb2, as you wee I multiply h with both bases( b1 and b2)
I will subtract hb2 from both sides
hb1=A-hb2
now I will divide my new expression by h
b1=(A-hb2)/h

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cclemeno cclemeno · Answer 2 · 2015-05-13T22:19:44-04:00

cclemeno cclemeno

13-05-2015

solve like a regular algebraic expression

A= h(b1+b2)
divide both sides by h
A/h= b1+b2
subtract b2 from both sides
A/h-b2= b1

b1= A/h-b2

hope this helps

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