Question

a traffic sign is triangular with a base of 39 inches and a height of 34 inches. find the area of the sign. the area of the sign is □ in²

Explanation:

Step1: Recall triangle - area formula

The formula for the area of a triangle is $A=\frac{1}{2}bh$, where $b$ is the base and $h$ is the height.

Step2: Substitute given values

Given $b = 39$ inches and $h=34$ inches. So $A=\frac{1}{2}\times39\times34$.

Step3: Calculate the area

First, $39\times34 = 1326$. Then $\frac{1}{2}\times1326 = 663$ square - inches.

Step4: Convert to square - meters

Since 1 inch = 0.0254 meters, 1 square - inch=$(0.0254)^2$ square - meters.
$A = 663\times(0.0254)^2$
$A=663\times0.00064516$
$A = 0.42774108$ square - meters $\approx0.43$ square - meters.

Answer:

$0.43$