The Height of a Triangle Is $3 \mathrm{~cm}$ More Than the Length of the Base

Multiple Choice

The height of a triangle is $3 \mathrm{~cm}$ more than the length of the base. If the area of the triangle is $90 \mathrm{~cm}^{2}$ , find the height and length of the base.

A) height: $16 \mathrm{~cm}$ , base: $11 \mathrm{~cm}$
B) height: $15 \mathrm{~cm}$ , base: $12 \mathrm{~cm}$
C) height: $12 \mathrm{~cm}$ , base: $9 \mathrm{~cm}$
D) height: $14 \mathrm{~cm}$ , base: $11 \mathrm{~cm}$