If in ∆ ABC, ∠B = 5 ∠C and ∠A = 3∠C,

Home » Aptitude » Plane Geometry » Question

According to question,
In a triangle ABC,
Given , ∠B = 5∠C; and ∠A = 3∠C
∴ ∠A + ∠B + ∠C = 180°
⇒ 3∠C + 5∠C + ∠C = 180°
⇒ 9∠C = 180°

⇒ ∠C =	180°	= 20°
	9