Question

1 poi
13. ABC is a right triangle in
which angle A = 90 degree and
AB = AC ,then the measure of
angle B is *​

Answer 1

Answer:

given A =90°

AB=AC

SO BY THE THEORUM

IF TWO SIDES OF TRIANGLE ARE EQUAL

THEN ANGLE OPPOSITE TO THEM are also equal.

so... B=C (1)

A+B+C=180°

90°+B+C=180

B+C=90°

USE VALUE OF B HERE

C+C =90

2C=90

C=45

C=B

45=45