Asked by Ted
show that triangle PQR with P(-2,10, Q(1,5) and R(5,2) is isosceles.
Answers
Answered by
MathMate
Find out the lengths of each side using the distance formula:
D=√((x2-x1)²+(y2-y1)²)
If two sides are identical in length, the triangle is isosceles.
If all three have the same length, then it is equilateral.
D=√((x2-x1)²+(y2-y1)²)
If two sides are identical in length, the triangle is isosceles.
If all three have the same length, then it is equilateral.