In `Delta ABC`, the ratio `a/sin A=b/sinB=c/sinC` is not always equal to (All symbols used have usual meaning in a triangle.)

In a DeltaABC, if a=13, b=14and c=15, then angle A is equal to (All symbols used have their usual meaning in a triangle.)

In a DeltaABC, if a=13, b=14and c=15, then angle A is equal to (All symbols used have their usual meaning in a triangle.)

In a DeltaABC, if a=13, b=14and c=15, then angle A is equal to (All symbols used have their usual meaning in a triangle.)

In a triangle ABC, if a=13,b=14 and c=15, then angle A is equal to (All symbols used have their usual meaning in a triangle.)

Three angles A,B,C( taken in that order ) of triangle ABC are in arithmetic progression.If a^(2)+b^(2)-c^(2)=0 and c=2sqrt(3), then the radius of circle inscribed in triangle ABC is equal tolNote: All symbols used have usual meaning in triangle ABC.

In which of the following situations, it is possible to have a DeltaABC ? (All symbols used have usual meaning in a triangle)

In a triangle ABC, if b=(sqrt(3)-1)a and /_C=30^(@), then the value of (A-B) is equal to(All symbols used have usual meaning in a triangle..

In AABC, angle A, B and C are in the ratio 1:2:3, then which of the following is (are) correct? (All symbol used have usual meaning in a triangle.)

In AABC, angle A, B and C are in the ratio 1:2:3, then which of the following is (are) correct? (All symbol used have usual meaning in a triangle.)