Question

A right triangle is removed from a rectangle to create the shaded region shown below. Find the area of the shaded region. Be sure to include the correct in

your answer

Answer 1

59.5 cm

Explanation:

Find the area of the entire rectangle first. Formula is base times height:
`9*8`

=72

Next, find the missing sides by subtracting
`8-3` and
`9-4`.

=5 and 5

Then find the area of the triangle. Formula is base times height divided by 2:
`(5*5)/(2)`

=12.5

Then subtract to find only the shaded section:
`72-12.5`

=59.5 cm