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

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The circum-radius of an equilateral triangle is 8 cm. The in-radius of the triangle is (a) 3.25 ..

Answer / mukherzee

( c ) 4 cm

Is This Answer Correct ?    30 Yes 3 No

The circum-radius of an equilateral triangle is 8 cm. The in-radius of the triangle is (a) 3.25 ..

Answer / 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

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