MISSION CGL MAINS 2015 : Advanced Quant Quiz

9. The side BC,CA and AB, of a triangle ABC are produced in order ,forming exterior angles ∠ACD, ∠BAE,and ∠CBF,then        ∠ACD + ∠BAE + ∠CBF is equal to :

(1) 540⁰

(2) 360⁰

(3) 180⁰

(4) None of these

10. The point of intersection of the altitudes of a triangle is called its:

(1) incentre

(2) excentre

(3) orthocentre

(4) centroid

Answers and Solution: