3 years ago

The triangle proportionality theorem was used to create a proportion. What is the value of x?

Mathematics

1 answer:

Vedmedyk [2.9K]3 years ago

4 0

Answer:

x=6

Step-by-step explanation:

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Step-by-step explanation:

The given scenario can be drawn as shown in the following attachment.

Given that,

$m\angle DCE=\angle ACB$ and $m\angle DEC=\angle ABC=90^{\circ}$

Therefore, $\Delta ABC\sim \Delta DEC$

$\Rightarrow \dfrac{AB}{DE}=\dfrac{BC}{EC}$

$\Rightarrow \dfrac{AB}{5}=\dfrac{15}{4}$

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The answer is A!

Step-by-step explanation: I’m pretty sure it’s A!
Unfortunately I haven’t seen this question on any of my tests but I’m pretty sure It is A! Trust me!

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In attachment I have answered this problem.

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