Question

The measures of three angles of a triangle are 3x, x + 30, and x + 40. Find the measure of all three angles.

Answer 1

3x=66

x+30=52

x+40=62

66,42,62

Explanation:

(3x)+(x+30)+(x+40)=180

5x+70=180

5x=110

x=22

3x=66

x+30=52

x+40=62

Answer 2

Answer: 66 degrees for 1st angle

52 degrees for 2nd angle

62 degrees for 3rd angle

Explanation:

3x+(x + 30)+(x + 40)=180

3x+x+30+x+40=180

3x+x+x+30+40=180

5x+70=180

5x=110

x=22

3x=

3(22)=66 degrees for 1st angle

x+30=

22+30=52 degrees for 2nd angle

x+40=

22+40=62 degrees for 3rd angle