In ΔABC, D, E and F are the midpoints of sides AB, BC and CA, respect – McqOptions

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1.	In ΔABC, D, E and F are the midpoints of sides AB, BC and CA, respectively. If AB = 12 cm, BC = 20 cm and CA = 15 cm, then the value of \(\frac{1}{2}\left( {DE + EF + DF} \right)\) is:
A.	23.5 cm
B.	5.88 cm
C.	15.67 cm
D.	11.75 cm
Answer» E.

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