Question

the 3 angles of triangle ABC are 3x-15,2x+10,x+5 find all the angles

Answer 1

Given in question

A =3x- 15

B =2x +10

C =x +5

By Angle sum property of a triangle...

A+ B+ C =180

=3x-15 +2x +10 +x +5 =180

=6x = 180

= x = 180 ÷6

=x = 30

Hence , the 3 angles are

A= 3x -15 = 3×30 -15 =75

B= 2x +10 = 2 ×30 + 10=70

C= x +5 = 30 +5 =35

Hop this will help....