Please help with this and more, question attached
1 answer:
<u> A = h(b1 + b2) / 2</u>
Multiply each side by 2: 2A = h(b1 + b2)
Divide each side by 'h' : 2A/h = b1 + b2
Subtract b2 from each side: <em>b1 = 2A/h - b2 </em>
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Happy learning!
Answer would be -19 and your welcome :)