Question

Find the coordinates for points are that proves figure trap is an isosceles trapezoid?

Answer 1

Coordinates of point R → (c - a, b)

Explanation:

From the picture attached,

By the property of an isosceles trapezoid,

PX = AY = a

Therefore, horizontal distance of Y from the origin PY = AP - AY

PY = c - a

Vertical distance of point R from x-axis (RY) = b

Therefore, coordinates of point R will be (c - a, b).