Question

what is the area of a right triangle 5 centimeters high with a base of 3 centimeters? a 7.5 square cm b 6.5 square cm c 15 square cm d 8 square cm

Explanation:

Step1: Recall the formula for the area of a triangle

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

Step2: Substitute the given values

Here, the base is 3 cm and the height is 5 cm. Substituting these values into the formula, we get $A = \frac{1}{2} \times 3 \times 5$.

Step3: Calculate the result

First, multiply 3 and 5: $3 \times 5 = 15$. Then, multiply by $\frac{1}{2}$: $\frac{1}{2} \times 15 = 7.5$.

Answer:

A. 7.5 square cm