Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Quadrilateral PQRS has
∠
P
=
65
∘
\angle P = 65^{\circ}
∠
P
=
6
5
∘
and
∠
R
=
115
∘
\angle R = 115^{\circ}
∠
R
=
11
5
∘
. Prove that PQRS is a cyclic quadrilateral.
Browse the problem library