Question

the perimeter of a rectangle is 224 incles. the length exceeds the width by 64 inces. find the length and the width.


the length is _____ inches

and

the width is _____ inches

Answer 1

Let
L=length
W=width = L-64
Perimeter = 224 = 2(L+W) = 2(L+L-64)
Solve for L.

Answer 2

A=1/2h(b1+b2)
solve for b

Answer 3

"A=1/2h(b1+b2)
solve for b"
I do not see the variable b in the expression: b1 and b2 are different variables than b.
In any case, I suggest you start a new thread for a new question.