Question

The vertices of a triangle are A(4,1) B(9,1) and C(2,5). what is the area of this triangle?

Answer 1

A = 10 units^2

Explanation:

If you'll draw this rectangle you'll see immediately that the base is (9 - 4), or 5 units and the height is 4 units (5 - 1).

Thus, the area of this triangle is A = (1/2)(base)(height) = (1/2)(5 units)(4 units), or

A = 10 units^2