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DeltaABC is an equilateral triangle. D, ...

`DeltaABC` is an equilateral triangle. D, E and F are the midpoints of AB, BC and CA respectively. If AB = 8 cm, the perimeter of A DEF is ………. cm.

A

`7AB^2=9AD^2`

B

`2AB^2=3AD^2`

C

`4AC^2=5BE^2`

D

`3AC^2=4BE^2`

Text Solution

Verified by Experts

The correct Answer is:
D
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