Answer:
Hi there!
Your answer is:
c= -b + (2A)/H
First: Multiply both sides by 2
A= 1/2 (b+c)h
× 2
2A = (b+c)h
Next, divide both sides by h
2A/H = b+c
Finally, subtract b
2A/H -b = c
Hope this helps
a=(1/2(b+c))(h)
1/2bh+1/2ch=a
1/2bh+1/2ch+−1/2bh=a+−1/2bh
1/2ch=−1/2bh+a
1/2chh/2=−1/2bh+ah/2
c=−bh+2a / h
