Home
Class 12
MATHS
In a triangle ABC if a, b, c are in A.P....

In a triangle ABC if a, b, c are in A.P. and `C-A=120^(@)`, then `(s)/(r )=`
(where notations have their usual meaning)

A

`sqrt(15)`

B

`2sqrt(15)`

C

`3sqrt(15)`

D

`6sqrt(15)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SOLUTION OF TRIANGLES

    VIKAS GUPTA (BLACK BOOK) ENGLISH|Exercise Exercise-2 : One or More than One Answer is/are Correct|15 Videos

  • SOLUTION OF TRIANGLES

    VIKAS GUPTA (BLACK BOOK) ENGLISH|Exercise Exercise-3 : Comprehension Type Problems|13 Videos

  • SEQUENCE AND SERIES

    VIKAS GUPTA (BLACK BOOK) ENGLISH|Exercise EXERCISE (SUBJECTIVE TYPE PROBLEMS)|21 Videos

  • STRAIGHT LINES

    VIKAS GUPTA (BLACK BOOK) ENGLISH|Exercise Exercise-5 : Subjective Type Problems|10 Videos

Similar Questions

Explore conceptually related problems

If in Delta ABC , sides a, b, c are in A.P. then

In in a triangle ABC , sides a,b,c are in A.P. then tan""A/2 tan""C/2

If the angle A,B,C of a Delta ABC are in A.P then :-

For Delta ABC, if 81 + 144 a ^(4) + 16b ^(4) + 9c ^(4) =144 abc, (where notations have their usual meaning), then :

In a triangle ABC, if a=4, b=8 and angleC=60^(@) , then : (where symbols used have usual meanings)

In triangle ABC, if A - B = 120^(2) and R = 8r , where R and r have their usual meaning, then cos C equals

In any triangle ABC, the value of (r_(1)+r_(2))/(1+cosC) is equal to (where notation have their usual meaning) :

In a triangle ABC, if a, b, c are in A.P. and (b)/(c) sin 2C + (c)/(b) sin 2B + (b)/(a) sin 2A + (a)/(b) sin 2B = 2 , then find the value of sin B

If a, b, c are in A.P. and b-a, c-b, a are in G.P. then a:b:c=?

In any Delta ABC , cot(A/2),cot(B/2),cot(C/2) are in A.P. , then