Question

Will medal and fan please help!
How can you prove a triangle is a right triangle? (4 points)
Select one:
a. Use the distance formula to see if at least two sides are congruent.
b. Use the slope formula to see if any sides are perpendicular.
c. Use the distance formula to see if all three sides are congruent.
d. Use the slope formula to see if any sides are parallel.

Please help me with this geometry question.

Answer 1

@welshfella can you help?

Answer 2

I was thinking B

Answer 3

Hint: if 2 sides are perpendicular then m1*m2 = -1 (where m1 and m2 are their slopes).

Answer 4

yes thats correct

Answer 5

Awesome! Thanks!

Answer 6

yw