Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Problem
Problem
If in a triangle
(
1
−
r
1
r
2
)
(
1
−
r
1
r
3
)
=
2
\left(1 - \frac{r_1}{r_2}\right)\left(1 - \frac{r_1}{r_3}\right) = 2
(
1
−
r
2
r
1
)
(
1
−
r
3
r
1
)
=
2
, then show that the triangle is right angled.
Browse the problem library