Question

answer for this also pls send​

Answer 1

Answer:

ACB = ACD = 50

BAC = DAC = 30

ABC = ADC = 100

Explanation:

First we need to prove that the triangles ABC and ADC are congruent.

AB = AD (given)

BC = CD (given)

AC = AC (common side)

Hence, triangle ABC and ADC are congruent by SSS rule of congruency.

So, angle ADC = angle ABC

angle BAC = angle DAC

angle ACD = angle ACB

(corresponding parts of congruent triangles)

Hence, angle ACB = angle ACD = 50

angle BAC = angle DAC = 30

Now, from angle sum property of a triangle, angle ADC = 180 - (30 + 50) = 100

Hence, angle ABC = angle ADC = 100

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