Question

21. In a triangle ABC angle B=45° and angle A-90° .The pair of equal sides are.
a) AB and AC b) BC and AB c) BC and AC d) None of the above​

Answer 1

Answer:

△ABC and △PQR

∠C=∠P (Given)

∠B=∠Q (Given)

∠A=∠R (Third angle of the triangle)

Thus, △ABC∼△PQR

Also, given, AB=AC

Thus, ∠B=∠C (Isosceles triangle Property)

But, ∠B=∠Q and ∠C=∠P

Hence, ∠Q=∠P

or PR=QR

Thus, both the triangles are Isosceles but not congruent.

Answer 2

Answer:

option a is correct

Step-by-step explanation:

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explanation is the ruse ASA