Solve the formula for b2.
Area of a trapezoid: A=12h(b1+b2)
2 answers:
Answer:
A = (12h x b1) + (12h x b2)
A = 12hb1 + 12hb2
A - 12hb1 = 12hb1 - 12hb1 +12hb2
A - 12hb1 = 12hb2
(A - 12hb1) / (12h) = (12hb2) / (12h)
b2 = (A - 12hb1) / (12h)
Answer:
b₂ = 
Step-by-step explanation:
A = 
h(b₁ + b₂) ← multiply both sides by 2 to clear the fraction
2A = h(b₁ + b₂) ← distribute
2A = hb₁ + hb₂ ( subtract hb₁ from both sides )
2A - hb₁ = hb₂ ( divide both sides by h )
= b₂
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