The circum-radius of an equilateral triangle is 8 cm. The
in-radius of the triangle is

(a) 3.25 cm

(b) 3.50 cm

(c) 4 cm

(d) 4.25 cm

Answer Posted / alok kr singh

A/SinA=B/SinB=c/Sin C=2R property

8/sin60=2R

therefore, 2R=8*2/sqrt3
R=8/1.71= 4.25 Ans.

Is This Answer Correct ?    2 Yes 17 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can anybody tell me how to prepare for the interview of SSC Scientific assistants

2268


Chola's local-government had assemblies of

2422


i am appearing an examination of assistant inspector of excise and the matter of fact is, i have no clue. can anyone help me out with likely questions?????

2416


Please send me last 5 year solved question papers of Canara Bank as well as Bank of Baroda to my e mail id

2323