SOLUTION: Decide whether the points are the vertices of a right triangle. (2,0), (-1,-1), (1,3)
Algebra.Com
Question 438202: Decide whether the points are the vertices of a right triangle. (2,0), (-1,-1), (1,3)
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
= <-1-2, -1-0> = <-3, -1>
= <1--1, 3--1> = <2, 4>
= <1-2, 3-0> = <-1, 3>
Take dot products:
==> the sides of the triangle, and are perpendicular, and so the triangle is a right triangle.
RELATED QUESTIONS
Decide whether or not the points are the vertices of a right triangle.
(-9,-3),... (answered by jim_thompson5910)
Decide whether or not the points are the vertices of a right triangle.... (answered by Edwin McCravy)
Decide whether or not the points are the vertices of a right triangle. (8,-4), (10,0),... (answered by rfer)
decide whether the points are the vertices of a right triangle. (0,0), (0,3),... (answered by Amrata1,MathTherapy)
decide whether the points are vertices of a right triangle. (1,2), (3,0),... (answered by rfer)
decide whether the points are vertices of a right triangle. (0,0), (0,3),... (answered by rfer)
decide whether the points are vertices of a right triangle..(1,2), (3,0),... (answered by fractalier)
(1, 4), (7, 6), (11, -6)Determine whether the three points are the vertices of a right... (answered by josgarithmetic)
show in a new way that the points (-1 -2), (5 4), (-3 0) are the vertices of a right... (answered by ewatrrr)