Two angles of a triangle are 54o & 72o. Find the ratio of third angle to the sum of first two angles.
Given two angles are 54 and 72
We know that sum of angles of a triangle is 180
Let the third angle be θ
54+72+θ=180
θ=180−126
=54°
Sum of first two angles=54+72
=126°
Ratio of third angle to the sum of first two angles=54126=1842
=37