Home
Class 12
PHYSICS
In Delta ABC,AB = BC, angle B=x^@ and an...

In `Delta ABC,AB = BC, angle B=x^@` and `angle A= (2x-20)^@` then, ``angle B`=?

A

`30^@`

B

`40^@`

C

`44^@`

D

`64^@`

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

In Delta ABC , right angle is at B,AB = 5cm and angle ACB =30^(@) Determine the lengths of the sides BC and AC.

In Delta ABC and Delta XYZ , "if " angle A and angle X are acute angles such that cos A =cos X then show that angle A = angle X

Knowledge Check

  • If in triangle ABC,angle A=60^@ , angle B=45^@ and a=2sqrt3 units then the value of b is

    A
    a)`sqrt2units`
    B
    b)`2sqrt2` units
    C
    c)2 units
    D
    d)`1/sqrt2` units

  • In a triangle ABC, medians AD and BE are deawn. IF AD= 4, angle D AB=(pi)/(6) and angle ABE=(pi)/(3), then the area of the trianlge ABC is-

    A
    `(32)/(3sqrt3)`
    B
    `(32)/(3)`
    C
    `(64)/(3)`
    D
    `(64)/(3sqrt3)`

    • Similar Questions

    Explore conceptually related problems

    In Delta ABC , If angle C = 3 angle A, BC = 27, and AB =48 . Then the value of AC is ______

    In Delta ABC, angle B le angle C. If the interior bisector of angle BAC be AP and AQbotBC. then prove that angle PAQ=(1)/(2)(angle B-angleC)

    (iv) In Delta ABC, angle ABC=90^@ and if AB=6 cm and BC= 8 cm , then find circum-radius of DeltaABC .

    In DeltaABC, angle C = 2 angle A, and AC = 2BC , then the value of (a^(2) + b^(2)+ c^(2))/(R^(2)) (where R is circumradius of triangle) is ______

    In triangle ABC, angle B is right angled, AC=2 and A(2,2), B(1,3) then the length of the median AD is

    In Delta ABC,AB= AC, BE and CF are resepectively the bisectors of angle ABC and angle ACB and itersect the sides AC and AB at the points E and F resepectively. Then four points B,C,E,F are not concylic.

    Home
    Profile