Question

The three angle of a triangle measure (2x-10°),(x+31°) and (5x+7°).Find the value of x and hence all the angles of a triangle. ​

Answer 1

(2x-10)+(x-31)+(5x+7) = 180°

2x-10+x-31+5x+7=180°

2x+x+5x-10-31+7=180°

8x-44=180°

8x=180°+44

8x=324

x=324÷8

x=81/2

so,

(2x-10°)=2×81/2-10

= 71°

(x+31°)=81/2+31°

=143/2

(5x+7°)=5×81/2+7

=391/2

Answer 2

Answer:

I hope it is helpful............................