Question

someone help me please i don’t know how to do square units

Answer 1

Answer: 78.

Explaination:

To calculate the area of a triangle, multiply the height by the width aka the "base" then divide by 2.

In this case, the height is 13 and the width is 12.

$S = \frac{height.width}{2} = \frac{13.12}{2} = 78$.