When you want to split a number N up into three parts
in the ratio of P:Q:R, the three parts are:
1st part:
·N
2nd part:
·N
3rd part:
·N
You know that the sum of the three angles in any triangle
is 180°.
So you want to split N=180° up into three parts
in the ratio of 8:3:4, so
P=8, Q=3, R=4
1st part:
·180° =
·180° = 96°
2nd part:
·180° =
·180° = 36°
3rd part:
·180° =
·180° = 48°
The smallest of those three is 36°.
[As a check we add those three: 96°+36°+48°= 180°]
Edwin