RRB Group-D Model Paper 14 with answers for online practice

Given:
Ratio of angles of a triangle = 2 : 3 : 5
Concept:
Sum of all three angles of a triangle is 180°.
Calculation:
Short Trick:
Ratio of greatest angle to smallest angle = 5 : 2
Detailed Method:
Ratio of angles of a triangle = 2x : 3x : 5x
According to the question
2x + 3x + 5x = 180°
⇒ 10x = 180°
⇒ x = 18°
Smallest angle is = 2 × 18° = 36°
Greatest angle is = 5 × 18° = 90°
∴ Required ratio = 90° : 36° = 5 : 2