Alma is finding the measures of the angles in a triangle that have the ratio 1: 3: 5. circle her mistake and correct it

Answer 1

A+3A +5A = 180

9A = 180

A = 180/9 = 20 degrees for the smallest angle

5A = 5(20) = 100 degrees for the largest angle

3A =3(20) = 60 degrees for the middle sized angle