The coordinator of the vertices of the triangle are (-8,8),(-8,-4), and

Answer with Step-by-step explanation:

Complete question:

The coordinates  of the vertices of the triangle are (-8,8),(-8,-4), and. Consider QR the base of the triangle. The measure of the base is b = 18 units, and the measure of the height is h = units. The area of triangle PQR is square units.

Let

P=(-8,8)

Q=(-8,-4)

QR=b=18 units

Height of triangle, h=Length of PQ

Distance formula

Using the formula

Height of triangle, h=

Area of triangle PQR=

Area of triangle PQR=

Area of triangle PQR=108 square units

Length of QR=18units

Let the coordinates of R(x,y)

  ......(1)

Using Pythagoras theorem

units

.....(2)

Subtract equation (2) from (1) we get

Using the value of y in equation (1)

Hence, the coordinate of R (10,-4) or (-26,-4).