Question

What is the area of this triangle?

Answer 1

Answer:

A = 1/2(y2-y1) (x3-x1)

A = 21 units^2

Step-by-step explanation:

The area of a triangle is 1/2 bh

Using the left side as the base b= 6 units

This is found by taking (y2-y1)

The height is 7 units, counting from the left side to x3

This is found by taking (x3-x1)

A = 1/2(y2-y1) (x3-x1)

A = 1/2 (6*7)

A = 1/2 *42

A = 21 units^2