Question

Find the missing variable for a parallelogram:

A = 28in2
h =
b = 6.3 in
(1in=2.54cm)

Answer 1

The formula of an area of parallelogram:

`A=bh`

We have

`b=6.3\ in` and
`A=28\ in^2`

Substitute:

`6.3h=28` divide both sides by 6.3

`h=(28)/(6.3)\\\\h=(280)/(63)\\\\h=4(28)/(63)\\\\h=4(28:7)/(63:7)\\\\h=4(4)/(9)`

Answer:
`h=4(4)/(9)\ in`