818 views
4 votes
What is the x value of the triangle 3x-5, 2x+20, 4x-30

2 Answers

3 votes

Answer:

The answer is 25

Explanation:

User Diffa
by
5.2k points
2 votes

Answer:

x = 21.7°

Explanation:

We know that the sum of the three angles in triangle add up to a total of 180°.

So adding the given expressions of angles and putting them equal to 180 to find the value of x:


(3x-5) + (2x+20) +(4x-30)= 180


4x+3x+2x+20-30-5=180


9x=180+30-20+5


9x=195


x=(195)/(9)


x=21.7

Therefore, the value of x in a triangle with angles 3x-5, 2x+20, 4x-30 is equal to 21.7°.

User Chris Zelenak
by
5.1k points