Question

If P is (3, 1), Q is (7, 2) and R is (6, 6) find the
gradients of PQ, QR, and PR. Find which two
lines are perpendicular and check your answer
using Pythagoras' theorem.​

Answer 1

Step-by-step explanation:

If P is (3, 1), Q is (7, 2) and R is (6, 6) find the

gradients of PQ, QR, and PR. Find which two

lines are perpendicular and check your answer

using Pythagoras' theorem