The second angle of a triangle is 15 less than twice the first angle The third angle is - Maths - Simple Equations

Question

The second angle of a triangle is 15° less than twice the first
angle The third angle is 20° more than the second angle Find
the three angles

Ankita Agarwal · Accepted Answer

Dear Student,
1st angle =x 2nd angle =2x-15 3rd angle =2x-15+20  so, x + 2x-15+2x-15+20=180° 5x-10=180° 5x=190 x=38° 2x-15=61° 2x-15+20=81°

Regards

The second angle of a triangle is 15° less than twice the first angle. The third angle is 20° more than the second angle. Find the three angles