Question

what is the area of the triangle on the coordinate grid below?

Explanation:

Step1: Determine the base and height

From the grid, the base \( b = 7 \) units and the height \( h = 3 \) units.

Step2: Use the area formula for a triangle

The formula for the area of a triangle is \( A=\frac{1}{2}bh \). Substitute \( b = 7 \) and \( h = 3 \) into the formula: \( A=\frac{1}{2}\times7\times3 \).

Step3: Calculate the area

\( A=\frac{21}{2}=10.5 \) square units.

Answer:

\( 10.5 \) square units