sussycat99 sussycat99

11-05-2022
Mathematics

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the formula for the area of a trapezoid is a=1/2(b1+b2)h solve for b1. the area of ABCD is 98cm2. figd the value of b2

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MsAnswerer MsAnswerer

11-05-2022

Solution/:

[tex]a = \frac{1}{2} h(b1 + b2)[/tex]

take h 4½ to the left

[tex] \frac{2a}{h} = b1 + b2[/tex]

take b2 to the left

[tex]b1 = \frac{2a}{h} - b2[/tex]

[tex]b2 = \frac{2a}{h} - b2[/tex]

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