2007 AMC 12A Problems/Problem 6
Problem
Triangles ABC and ADC are isosceles with AB=BC and AD=DC. Point D is inside triangle ABC, angle ABC measures 40 degrees, and angle ADC measures 140 degrees. What is the degree measure of angle BAD?
Solution
I leave it to you to draw your own diagram.
- We angle chase, and find out that:
- DAC=20
- BAC=70
- BAD=50
