Question

What is the area of a triangle with a base of 15 inches and a height of 4 inches?

A. 15 square inches
B. 30 square inches
C. 60 square inches
D. none of the above

Answer 1

30 square inches

Explanation:

We have to find area of triangle.

We have given the base of triangle and height of triangle.

From question statement,we observe that

base=b= 15 inches and height=h= 4 inches

The area of triangle is half of base times the height of triangle.

Area= 1/2×base×height

By putting the values of base and height in above formula,we get

Area= 1/2×15×4

Area= 30 square inches

30 square inches is area of triangle with a base of 15 inches and a height of 4 inches.

Answer 2

Correct choice is B

Explanation:

The area of the triangle is

`A_(\triangle)=(1)/(2)\cdot \text{base}\cdot \text{height}.`

If the base is of 15 inches and the height is of 4 inches, then the area is

`A_(\triangle)=(1)/(2)\cdot 15\cdot 4=2\cdot 15=30\ in^2.`