Question

What is the area of a triangle with base of 20 feet and a vertical height

of 40 feet?
A=200 square ft
A=800 square ft
A=400 square ft
A-600 square ft

Answer 1

A = 400 ft²

Explanation:

The area (A) of a triangle is calculated as

A =
`(1)/(2)` bh ( b is the base and h the vertical height ) , then

A =
`(1)/(2)` × 20 × 40 = 10 × 40 = 400 ft²