Question

in triangle ABC, angle C =90, AC= BC, find angle B

Answer 1

given AC=BC
angle c =90°
to find angle B
soln. angle A=angle B. angle opposite to the equal sides
A+B+C=180. angle sum property
A+A+90=180
2A=180-90=90
A=90/2=45
A=B=45°

hope this help you