simrauppala simrauppala

27-10-2019
Mathematics

contestada

In a triangle ABC, D and E are the mid points of AB and AC respectively. If DE|| BC and
BC = 10 cm, find DE. Give the reasons

Respuesta :

jimrgrant1 jimrgrant1

27-10-2019

Answer:

DE = 5 cm

Step-by-step explanation:

Using the midline theorem.

A segment joining the midpoints of 2 sides of a triangle DE and parallel to the third side BC is one half the length of the third side, that is

DE = 0.5BC = 0.5 × 10 = 5

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