Question

IN ∆ AB =AC and Angle A =2x and Angle B =X + 10 .then find measure of all the angles of triangle ABC​

Answer 1

in triangle ABC

AB=AC

so,angle B=angle C

given angle B=x+10

so,angle C will be also x+10

by angle sum property of triangle

2x+x+10+x+10=180

4x+20=180

4x=160

x=40

therefore angle A=2×40=80

angle B=angle C=50