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If the sides of the triangle ABC are p,q...

If the sides of the triangle ABC are p,q and `sqrt(p^(2)+ pq+q^(2)),` then the greatest angle of the triangle is-

A

`(pi)/(2)`

B

`(2pi)/(3)`

C

`(5pi)/(4)`

D

`(5pi)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • The measures of the sides of a triangle are 3,5 and 7 then the greatest angle of the triangle is-

    A
    `120^(@)`
    B
    `150^(@)`
    C
    `135^(@)`
    D
    `90^(@)`

  • If the sides of right angled triangle are in G.P then the cosines of the acute angle of the triangle are-

    A
    `(sqrt(5)-1)/2`
    B
    `(sqrt(5)+1)/2`
    C
    `sqrt(sqrt(5)-1)/2`
    D
    `(-(sqrt(5))-1)/2`

  • If p+q = sqrt(13) and p-q = sqrt(5) , then the value of 2pq is

    A
    2
    B
    4
    C
    9
    D
    18

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