Question

A triangle has a base of 9 feet and a height of 12 feet.

What is the area of the triangle?

Responses

42 ft2
42 ft 2

54 ft2
54 ft 2

84 ft2
84 ft 2

108 ft2

Answer 1

The area \( A \) of a triangle can be calculated using the formula:

\[
A = \frac{1}{2} \times \text{base} \times \text{height}
\]

For the given triangle:

- Base = 9 feet
- Height = 12 feet

Plugging in the values:

\[
A = \frac{1}{2} \times 9 \times 12
\]

Calculating the area:

\[
A = \frac{1}{2} \times 9 \times 12 = \frac{1}{2} \times 108 = 54 \text{ ft}^2
\]

Thus, the area of the triangle is \( 54 \text{ ft}^2 \).