Question

the sum of the angles of a triangle is 180 degree if three angles are 2 X + 15 degree 85 degree and X + 20 degree the value of x

Answer 1

Hello there!!
The sum of the angles of a triangle is 180.
2x° + 15 + 85° + x + 20° = 180°
3x + 120° = 180°
3x = 180° - 120°
3x = 60 °
x = 20°.
Value of x is 20°.

This is the answer.

Answer 2

Hola Mate !!

Here's your answer :-

First angle = (2x+15)°
Second angle = 85°
Thurd angle = (x+20)°

ATQ:-

$(2x + 15) + 85 + (x + 20) = 180 \\ = > 3x + 120 = 180 \\ = > 3x = 180 - 120 \\ = > 3x = 60 \\ = > x = \frac{60}{3} \\ = > x = 20$

Thus, the value of x is 20.

Hope it helps
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