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Midpoints of the sides AB and AC of Delt...

Midpoints of the sides AB and AC of `DeltaABC` are (-3, 5) and (-3, -3) respectively, then the length of BC =

A

10

B

15

C

16

D

30

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • If the mid-point of the sides AB,AC,CA of a triangle are (1,5,-1) , (0,4,-2), (2,3,4) respectively then the length of the median drawn from C to AB is

    A
    `sqrt(29)`
    B
    `sqrt(27)`
    C
    `sqrt(5)`
    D
    5

  • If the midpoint of the sides bar(BC), bar(CA), bar(AB) of DeltaABC are (3, -3), (3, -1), (1, 1) respectively then the vertices A, B, C are

    A
    A(1, 3), B(1, -1), C(5, -5)
    B
    A(1, -3), B(1, -1), C(5, -5)
    C
    A(1, 3), B(1, -1), C(5, 5)
    D
    A(1, 3), B(1, 1), C(5, -5)

  • The equations of the perpendicular bisectors of the sides AB and AC of DeltaABC are x-y+5=0, x+2y=0 respectively. If A=(1, -2) then the equation of the line BC is

    A
    `14x+23y-40=0`
    B
    `14x-23y+20=0`
    C
    `23x-14y+40=0`
    D
    `23x+14y-20=0`

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