Please help!
The second angle of a triangle is three times the first and the third is 12 degrees less than twice the first. Find the measures of the angles.

Question

Please help!
The second angle of a triangle is three times the first and the third is 12 degrees less than twice the first. Find the measures of the angles.

campbell_st · Answer

let the 1st angle = x

then the 2nd angle = 3x

the 3rd angle is = 2x - 12

so the 3 angles add to 180, the angle sum of a triangle

x + 3x + 2x - 12 = 180

this simplifies to 

6x - 12 = 180

solve for x. 

when you know x you will be able to calculate the 3 angles.. listed above.

campbell_st · Answer

why.... the aim of the site is to help understanding and avoid giving answers.

anonymous · Answer

ohhhhh okay... thank you guys so much!!! :)