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3 years ago

In the figure below, points D, E, and F are the midpoints of the sides of LABC,

Mathematics

1 answer:

attashe74 [19]3 years ago

4 0

Answers:

DE = 39
AB = 68
BE = 34

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Explanation:

BC = 78 is parallel to the midsegment DE.

This parallel midsegment is half as long as BC, so DE = BC/2 = 78/2 = 39

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DF = 34 doubles to AB = 2*DF = 2*34 = 68, since the midsegment is half as the parallel side, so we just think in reverse of that process.

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BE = 34 for two reasons

Quadrilateral EBFD is a parallelogram with opposite sides BE and DF that are congruent.
E is the midpoint of AB, so BE is half as long as AB

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We don't use the info that AC = 48.

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3 years ago

Read 2 more answers

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Answer:

Please, see the attached file.

Thanks.

Step-by-step explanation:

-5x-8y=40

This is a linear equation, and its graph is a right line, we only need two points, because by two points only goes trough only a right line:

1) For x=0→ -5(0)-8y=40

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Point=(x,y)→Point=(0,-5)

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