Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
In a circle with centre
MATHEMATICS · Subjective · CBSE · Mathematics · Circles · Circles
Problem
In a circle with centre
O
O
O
,
A
B
AB
A
B
is a diameter and
C
C
C
is any point on the circle (other than
A
A
A
or
B
B
B
). Prove that
△
A
B
C
\triangle ABC
△
A
B
C
is right-angled at
C
C
C
.
Related theory
Circles
Circle angle properties
Angle subtended by a chord
Browse the problem library