Cheenta is joining hands with Aditya Birla Education Academy for AMC Training.

# CMI Entrance 2019 Problem from Transformation Geometry

Let's discuss a problem from CMI Entrance Exam 2019 based on the Inscribed Angle Theorem or Central Angle Theorem and Transformation Geometry.

The Problem:

Let $A B C D$ be a parallelogram. Let 'O' be a point in its interior such that $\angle A D B+\angle D O C=180^{\circ}$. Show that $\angle O D C=\angle O B C$.

The Solution:

## Some useful resources:

This site uses Akismet to reduce spam. Learn how your comment data is processed.