Exercise 27 Page 784

We are told that the height of a triangle is $3\text{ m}$ less than its base. Therefore, if we let $b$ be the base, the height can be expressed as $h=b-3.$ We are also told that the area is $44$ square meters. Let's draw a diagram to illustrate the situation.

The area of a triangle is half the product of its base and its height.