Question

The triangular road sign has a base of 30 inches and a height of 40 inches. What is it’s area?

Answer 1

600 in²

Explanation:

The area (A) of a triangle is calculated as

A =
`(1)/(2)` base × height, that is

A = 0.5 × 30 × 40 = 15 × 40 = 600 in²

Answer 2

The area of the triangular road sign is
`600 \mathrm{ln}^(2)`

SOLUTION:

We need to find the area of the road sign, which is in triangular shape.

So, we need to calculate the area of a triangle.

Given, length of the base of the given triangle = 30 inches

Height of the given triangle = 40 inches

We know that,

area of the triangle
`\Delta=(1)/(2) * b * h`

Where,
`\Delta` = area of a triangle

b = base length of the triangle

h = height of the given triangle

hence substituting the values we get

`\Delta=(1)/(2) * 30 * 40`

`=(1)/(2) * 1200`

`=600 \ln ^(2)`

Hence, the area of the triangular road sign with base of 30 inches and a height of 40 inches is
`600 \ln ^(2)`