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In ADEF, e = 9.8 inches, f = 5.6 inches and ZD=149º. Find ZF, to the nearest 10th of

Mathematics

1 answer:

andrey2020 [161]3 years ago

8 0

Answer:

f2 = 5.22 + 6.82 - 2(5.2)(6.8) cos 166°

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Step-by-step explanation:

We will prove the converse of the postulate,

"If a line parallel to one side of a triangle and it intersects other two sides of the triangle, then the line will divide both the sides in the same ratio"

Segment DE intersects AB and BC at D and E respectively,

Ratio of the segments of two sides,

$\frac{AD}{DB}=\frac{CE}{EB}$

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Therefore, lines AC and DE are parallel.

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