Question

in a ∆ABC,AB=2x+4,BC=4x-18 & CA=x+2. if AB=BC,find x. is the ∆ABC equilateral?

Answer 1

Answer:

given

AB=BC

so,

2x+4=4x-18

2x-4x=-18-4

-2x=-22

X=22/2

X=11

hope this helps

Answer 2

Answer:

x=11,and it is not equilateral triangle

Step-by-step explanation:

given-  AB=BC

     =2x+4=4x-18

     =2x-4x= -18-4

     = -2x= -22

     = x=22/2=11    ............    so,AB=BC=2(11)+4=26

putting this x in CA. i.e. x+2

                        ,we get...11+2=13

we can see that CA is not equal to AB and BC ,hence it is not equilateral triangle