Question

in a traingle of ABC , ab=ac, if angle a =2x and angle b = x+10 then find angle of a,b &c​

Answer 1

A,B,C be the angle of a triangle.

<A is 2x nd <b is x+10

then,

angle A+ angle B + angle C =180

(angle sum property of triangle)

therefore,

2x+ x+10+ angle C =180°

3x+10=180

x + 10 = 180/3

x=60-10

x=50°

therefore ,

angle B =x + 10

=50+10

=60°

as side ab=ac

angle B is equal to angle C

therefore angle C is 60°