Question

7. In Fig. 13.30, ABC is an equilateral triangle
and AD is perpendicular to BC. Prove that
∆ADB = ∆ADC in three different
ways.​

Answer 1

Answer:

Step-by-step explanation:

Triangle ADB and ABC are congruent to each other, which means all it's sides and angles would be same. So Angle ADC and ABC are equal to each as Line AD is perpendicular to line BC. So both the Same angles (angle ADC and angle ABC) are equal to 90 degrees.

I hope this helps.