In ΔABC, D and F are the middle points of the sides AB and AC, respectively. E is a point on the segment DF such that DE : EF = 1 : 2. If DE = 4 cm, then BC is equal to:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 24 cm.
DE : EF = 1 : 2
DE = 4 cm
So, EF = 8 cm
DF = 4 + 8 = 12 cm
BC = 2DF = 2 × 12 = 24 cm