- In an isosceles triangle, the length of each equal side is twice the length of the third side. The ratio of areas of the isosceles triangle and an equilateral triangle with same perimeter is

A

30$$\surd{5}$$: 100

B

32$$\surd{5}$$: 100

C

36$$\surd{5}$$ : 100

D

42$$\surd{5}$$ : 100