Question #00cb6

1 Answer
May 29, 2017

Your steps are right, but answer is wrong. #h=9#.

Explanation:

Your steps are right, but answer is wrong.

Area of rectangle plus area of triangle is #30# square units.

Area of triangle is #12# square units

Hence area of rectangle is #30-12=18# square units

aand hence height #h# is #h=18/2=9#

Check: Area of rectangle is #2xx9=18# and adding area of triangle #12# square units, total area is #18+12=30# square units.