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2 years ago

The triangles are similar. If DE = 24, EF = 42, and AB = 8, find BC.

Mathematics

1 answer:

Nastasia [14]2 years ago

7 0

$\Delta ABC\sim\Delta DE F\\\\\frac{|EF|}{|DE|}=\frac{|BC|}{|AB|}\\\\substitute:\\\\\frac{|BC|}{8}=\frac{42}{24}\\\\\frac{|BC|}{8}=\frac{7}{4}\ \ \ \ /\cdot8\\\\|BC|=7\cdot2\\\\|BC|=14\\\\\\Answer:D.$

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1 year ago

If LO = 15x+19 and QN = 10x+2 find PN

svet-max [94.6K]

Answer:

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Step-by-step explanation:

The complete question is

Given the quadrilateral is a rectangle, if LO = 15x+19 and QN = 10x+2 find PN

see the attached figure to better understand the problem

we know that

The diagonals of a rectangle are congruent and bisect each other

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2 years ago

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