Question

in ∆abc,m and n are mid point of sides ab and ac respectively , if mn =7.2 cm then bc=?​

Answer 1

Answer:

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Answer 2

The length of BC is 14.4 cm.

Step-by-step explanation:

In the  $\triangle ABC$, M, and N are the midpoints of sides AB and AC respectively.

Drawing a corresponding figure.

From the figure, we can see that $MN$ when joined together forms a line segment that would be parallel to $BC$

This is according to the mid-point theorem.

The line $MN$ would be half of the length of the third side, $BC$

Thus $MN = \frac{1}{2}\times BC$

Given: $MN = 7.2 cm$

$BC = 2 \times 7.2 = 14.4 cm$