Question

value of X in the given triangle . pls help
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Answer 1

40⁰

In this figure 115⁰ = x+2x-5

= 3x -5 = 115⁰

3x= 120⁰

x= 120/3

x= 40⁰

Answer 2

Answer:

x = 40°

solution:-

• we know that the sum of all the angles of a straight line is 180 degree

180°-115°

65°

we also know that the sum of all the angles of a triangle is 180 degree

so,

x+2x-5+65=180

3x+60=180

3x=180-60

3x= 120

x= 120/3

x = 40°

hence, the value of x is 40°.

the angles are:-

x= 40°

2x-5°= 40×2-5

= 75°

and 65°

40°,75° and 65°