Respuesta :

Answer:

18 in²

Step-by-step explanation:

A = 1/2bh

[tex]\frac{1}{2}[/tex](3)(12) = 18

3 x 12 = 36 divided by 2 is 18

it has to be in squared because you are finding an area of the triangle.

Hope this helps!

The formula for finding the area of a triangle is (1/2)*base*height.

Here, it tell you what your base and height are. The tell you that your base is equal to 3 inches (b=3in) and that your height is equal to 12 inches (h=12in). Now all you need to do is “plug in” those numbers into the formula for the area of a triangle:

(1/2) * base * height

(1/2) * 3 inches * 12 inches

area = 18 inches