Question

A isosceles triangle ABC AB=AC and angle a =90 find angle b ​

Answer 1

Answer:

45°

Step-by-step explanation:

In an isoceles traingle

AB=AC

Therefore angle B=Angle C (sides opposite to equal angles of an isoceles traingle are equal)

Let angle B be x

90+x+x=180°(angle sum property of a triangle)

90+2x=180

2x=180-90

x=90/2=45°

Therefore angle A=90, angle B=45

And angle C=45

or

remaining angle are equal so

180-90=2x

90=2x

x=45°