Question

What is the area of this triangle in the coordinate plane? 5 units² 6 units² 7 units² 12 units²

Answer 1

Given:

A right triangle on a coordinate plane.

To find:

The area of a triangle.

Solution:

We know that, the area of a triangle is

$A=\dfrac{1}{2}\times Base \times Height$

From the given figure it is clear that the base of the triangle is 4 units and the height is 3 units. So, the area of the given triangle is

$A=\dfrac{1}{2}\times 4 \times 3$

$A=\dfrac{12}{2}$

$A=6$

The area of the given triangle is 6 units². Therefore, the correct option is B.