Question

The area of a trapeazoid is A=0.5(b1+b2)h
Find b1 if A=100, h=5, and b2=12

Answer 1

\[The area of a trapeazoid is A=0.5(_{b1}+_{b2})h Find _{b1} if A=100, h=5, {b2}=12\]

Answer 2

Replace the symbols with what you have.

100=.5 x 5(b1 + 12)
100= 2.5(b1+12)
100= 2.5b1 +30
2.5b1=100-30
2.5b1=70
b1=70/2.5
b1=28

Answer 3

Did you follow that with understanding?

Answer 4

to check:
b1+b2=28+12=40
5 times 40 =200
1/2 time 200=100
A=100
Must be right,,,,,,agree or disagree.