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zimovet [89]
3 years ago
10

What is BC ? Enter your answer in the box.

Mathematics
2 answers:
tamaranim1 [39]3 years ago
5 0

<u>Answer-</u>

<em>The length of BC is </em><em>8 units.</em>

<u>Solution-</u>

Mid-Point Theorem-

The line segment connecting the midpoints of  two sides of a triangle is parallel to the third side and is congruent to one half of the third side.

As given,

AD = DB, so D is the mid point of AB

FA = FC, so F is the mid point of AC

Hence, DF is the line segment connecting the midpoints of  two sides of a triangle.

Applying the theorem,

BC = 2DF = 2×4 = 8 units

astraxan [27]3 years ago
4 0

Answer: BC= 8 units.

Step-by-step explanation:

In the given figure m, we have a Δ ABC in which point D and F are the mid point of sides AB and AC respectively .

We know that the Mid - segment theorem says that a line segment that connects the midpoints of two sides of a triangle is parallel to the third side and it should be equal to one-half of the third side.

Therefore , For the given situation , we have

DF=\dfrac{1}{2}BC\\\\\Rightarrow\ BC= 2 DF

Since DF = 4 units [Given ]

Then,  BC= 2(4)= 8\text{ units}

Hence, BC= 8 units.

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