Question

Triangle PQR has vertices P(-2,8), Q(2,4), and R(4,6), which best describes triangle PQR?

A- a right triangle with PQ ㅗ QR
B- a right triangle with PQ ㅗ PR
C- an isosceles triangle with PQ congruent to QR
D- an isosceles triangle with PQ congruent with PR

Answer 1

first, find the side lengths.
PQ = √(4^2+4^2) = √32
Find the others, and then you can see which kind of triangle it is.
Think Pythagorean Theorem

Answer 2

Is B