r_(1)=(Delta)/(s-a)=s tan(A)/(2)=

Find the Radius of escribed circle (i) r1= Delta /(s-a)=s tan A/2=4R sin A/2cos B/2cos C/2

In Delta ABC, the correct formule among the following are Statement -I : r= 4 R sin ""(A)/(2) sin "" ( B) /(2) sin "" ( C) /(2) Statement -II : r_1= (s-a) tan "" ( A)/( 2) Statement-III : r_3 =(Delta ) /( s-c)

In Delta ABC,tan,(A)/(2)tan,(B)/(2)tan,(C)/(2)=sqrt((1-(a)/(s))(1-(b)/(s)(1-(c)/(s))))

Prove that tan.(A)/(2)+tan.(B)/(2)+tan.(C)/(2)=(bc+ca+ab-s^(2))/(Delta)

Derive the Formula of inradius (i) Delta/ s (ii) ( s-a) tan A/2 (iii) 4R sin A/2sin B/2sin C/2

In triangle ABC ,prove that the maximum value of tan(A)/(2)tan(B)/(2)tan(C)/(2)is(R)/(2s)

In triangle ABC, if r_(1)=3r, then the value of tan((A)/(2))(tan((B)/(2))+tan((C)/(2))) is equal to

In triangleABC," if"(s-a)/(Delta)=1/8, (s-b)/(Delta)=1/12 and (s-c)/(Delta)=1/24 , then b=

In triangleABC," if"(s-a)/(Delta)=1/8, (s-b)/(Delta)=1/12 and (s-c)/(Delta)=1/24 , then b=