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$${\mathtt{A}} = \left({\frac{{\mathtt{b1}}}{{\mathtt{2}}}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{b2}}}{{\mathtt{2}}}}\right){\mathtt{\,\times\,}}{\mathtt{h}}$$    the b1 are down and b1+b2 divde by 2, What are ALL the variations 

 

what is the formula for b1?

 Jul 29, 2014

Best Answer 

 #1
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A = (b1/2 + b2/2)h

1) A/h = b1/2 + b2/2 --> A/h - b2/2 = b1/2 --> 2A/h - 2b2/2 = b1 --> b1 = 2A/h - (b2).

2) A/h = b1/2 + b2/2 --> A/h - b1/2 = b2/2 --> 2A/h -2b1/2 = b2 --> b2 = 2A/h - (b1).

3) 2A = (b1 + b2)h --> 2A/(b1+b2) = h.

 Jul 29, 2014
 #1
avatar+4473 
+10
Best Answer

A = (b1/2 + b2/2)h

1) A/h = b1/2 + b2/2 --> A/h - b2/2 = b1/2 --> 2A/h - 2b2/2 = b1 --> b1 = 2A/h - (b2).

2) A/h = b1/2 + b2/2 --> A/h - b1/2 = b2/2 --> 2A/h -2b1/2 = b2 --> b2 = 2A/h - (b1).

3) 2A = (b1 + b2)h --> 2A/(b1+b2) = h.

AzizHusain Jul 29, 2014

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