Question

what is the area of a triangle with a base of 10 cm and a height of 8 cm?

Explanation:

Step1: Recall 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 values

Given $b = 10$ cm and $h=8$ cm, we substitute into the formula: $A=\frac{1}{2}\times10\times8$.

Step3: Calculate result

$\frac{1}{2}\times10\times8 = 40$ $cm^{2}$.

Answer:

B. $40$ $cm^{2}$