Question

What is the area of Triangle PQR on the grid?
2 square units
3 square units
4 square units
8 square units

Answer 1

there are 4 sqaure units in that triangle

it is 2 wide by 4 tall

4*2 = 8, divided by 2 = 4

Answer 2

base = 2
height = 4

Just count the lines on those

Area of a triangle = 1/2 * b * h
A = 1/2 * 2 * 4 = 4 square units