Question

In triangle ABC , AB=AC and D is the point inside triangle such that BD=DC as shown in figure



Which of the following is true

a. ΔABD≅ΔACD

b. ∠ABD=∠ACD

c. ∠DAC=∠DAB

d. All the above


Plz answer the question in 5 min​

Answer 1

ANSWER

In △s ABD and ADC,

AD = AD (Common)

BD = CD (Given)

AB = AC (Given)

Hence, △ABD≅△ADC (SSS rule)

Thus, ∠ADB=∠ADC=x (By cpct)

∠ADB+∠ADC=180 (Angles on a straight line)

x+x=180

x=90

∠ADB=∠ADC=90  

∘

 

or, AD is perpendicular to BC

Answer 2

Step-by-step explanation:

Hey mate

Option d. All the above

Is correct