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Abc is an equilateral triangle and has an area of 8/5. point d is the midpoint of side ab, point e is the midpoint of side bc, and point f is the midpoint of side ac. what is the area of the parallelogram decf?

a.2/5

b.2/3

c.4/5

d.13/15

e.1

Verified Answer :

caylus

Hello,

There are 4 congurent equilateral triangles in ABC and each has an area of (8/5)/4=2/5.
To form the parallelogram we need 2 triangles: 2* 4/5=4/5.

Answer C.

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