Question

What's the area of an equilateral triangle with sides of 10 inches and height of 7 inches?
Question 16 options:

A)

44 sq. in.

B)

20 sq. in.

C)

35 sq. in.

D)

70 sq. in.

Answer 1

To find the area of an equilateral triangle, you can use the formula:

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

In this case, the base of the triangle can be taken as one of the sides, which is 10 inches, and the height is given as 7 inches. Plugging in these values:

\[
\text{Area} = \frac{1}{2} \times 10 \times 7 = \frac{1}{2} \times 70 = 35 \text{ square inches}
\]

Therefore, the area of the equilateral triangle is:

C) **35 sq. in.**