Question

plz ans fast ques number 16

Answer 1

Step-by-step explanation:

Given,

angle ABC = angle ABD = 40°

angle BAC = angle BAD = 90°

Now,

In tri.ABC & tri.ABD

angle ABC = angle ABD [Given]

angle BAC = angle BAD [Given]

AB = AB [Common side]

So, Tri.ABC is congruent to Tri.ABD by ASA rule

Therefore BC = BD (CPCT)

By theorem we can say that tri.BCD is Iso.tri

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