To calculate the area of a triangle, you can use the formula:
\[ \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} \]
Given that the base is 13 yards and the height is 5 yards, you can substitute these values into the formula:
\[ \text{Area} = \frac{1}{2} \times 13 , \text{yards} \times 5 , \text{yards} \]
Calculating it step-by-step:
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Multiply the base and height: \[ 13 \times 5 = 65 , \text{square yards} \]
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Now multiply by \(\frac{1}{2}\): \[ \frac{1}{2} \times 65 = 32.5 , \text{square yards} \]
Thus, the area of the triangle is 32.5 square yards.