Grade 11Trigonometry

In a triangle ABC a:b:c=4:5:6.Find the ratio of the circumcircle to the incircle?

SREEKANTH INDLA

10 Years agoGrade 11

2 Answers

Vijay Mukati

10 Years ago

Dear Student,

Since we know that, Area of triangle =abc/4R = rs,
From here R/r = 4sR²/abc,
Assume, a = 4x, b = 5x and c = 6x. Substitude this values in the above realation and Use the formula for R in terms of abc and find the ratio.

Thanks.

siva prasad reddy

10 Years ago

/abc,Assume, a = 4x, b = 5x and c = 6x. Substitude this values in the above realation and Use the formula for R in terms of abc and find the ratio.Thanks. ²Since we know that, Area of triangle =abc/4R = rs,From here R/r = 4sR