Question

find the area of the triangle given below and type your result in the empty box.
image of triangle with vertices a, d, b; ad = 22 ft (base), bd = 20 ft (height, right angle at d)
area = \boxed{} ft²

Explanation:

Step1: Recall triangle area formula

The formula for the area of a triangle is \( A = \frac{1}{2} \times \text{base} \times \text{height} \).

Step2: Identify base and height

From the diagram, the base \( b = 22 \) ft and the height \( h = 20 \) ft.

Step3: Substitute into formula

Substitute \( b = 22 \) and \( h = 20 \) into the formula: \( A = \frac{1}{2} \times 22 \times 20 \).

Step4: Calculate the result

First, calculate \( 22 \times 20 = 440 \), then \( \frac{1}{2} \times 440 = 220 \).

Answer:

220