The members of a spirit club are buying felt to make pennants for their school. Each pennant is an isosceles triangle with a base of 9 inches and a height of 24 inches. In square inches, how much felt will each pennant use?

Question

Responses

Answer 1

To find the area of an isosceles triangle, we can use the formula:

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

In this case, the base of the pennant is 9 inches and the height is 24 inches.

Plugging in the values:

\[ \text{Area} = \frac{1}{2} \times 9 \times 24 \]

Calculating:

\[ \text{Area} = \frac{1}{2} \times 216 = 108 \]

Thus, each pennant will use 108 square inches of felt.