D and e are the midpoint of side ab and ac respectively if BC equal to 5.6 cm and angle B equal to 72 degree compute DE
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It is given that,
D and E are the midpoint of sides AB and AC
BC=5.6 cm and ∠B=72o
To find: DE
In △ABC,
D and E are the mid point of the sides ABand AC
⇒DE∥BC and DE=21BC[ Using mid point theorem ]
∴DE=21×5.6=2.8 cm
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