Question

P(1, 6), Q(-2, 1) and R(3, -2).
Show that triangle PQR is a right-angled isosceles triangle and calculate the area of the triangle.​

Answer 1

Step-by-step explanation:

Given ∠Q=90

o

PQ=QR ...(1)

PQ

2

+QR

2

=PR

2

(Phythagorus theoram)

Using equation (1)

PR

2

=2PQ

2

=2QR

2

solution