What is the area of a triangle with vertices at (-2,-1), (4, -1), (6,5)?
o 6 square units
o 9 square units
o 18 square units
36 square units

The area of a triangle with vertices at (-2,-1), (4, -1), (6,5) is 18 square units .

Explanation:

Given:

The 3 vertices of the triangle are

A(-2,-1) B(4,-1) and C ( 6,5)

Solution:

The area of triangle which has vertices (x1,y1), (x2,y2) and (x3,y3)

Substituting the values,

- (2, -7)

- lines r and s and lines t and u must be parallel