Question

In the given AABC if AB = AC and BD = DC,
then ADC =
А
B
С
D
(A) 60
(C) 90°
(B) 120
(D) 45​

Answer 1

Answer:

angle ADC = 90° thus option C is right one

Answer 2

Step-by-step explanation:

Given

AB = AC ( Side)

BD = DC ( Side)

AD = AD ( Common)

so Angle ADB is equal to angle ADC

WE know

AD is perpendicular to BC

so

Angle ADC = 90

because of

angles are equal by SAS theorem