lorealnakaos
lorealnakaos lorealnakaos
  • 19-10-2021
  • Mathematics
contestada

This is a 30-60-90 triangle.
What is the measure of x?
13
Х
X =
= [?]

This is a 306090 triangle What is the measure of x 13 Х X class=

Respuesta :

danielgeyfman
danielgeyfman danielgeyfman
  • 19-10-2021

Answer:

[tex]x=3[/tex]

Step-by-step explanation:

We know that in a 30-60-90 triangle, if the side opposite the 30 degree angle is [tex]x[/tex], then the side opposite the 30 degree angle is [tex]x\sqrt{3}[/tex] and the side opposite the 90 degree angle is [tex]2x[/tex].

We know that, in this diagram, [tex]x[/tex] is opposite the 60 degree angle because it "looks" bigger(by inspection).

So, [tex]x=\sqrt{3}\cdot \sqrt{3}=(\sqrt{3})^2=3[/tex].

Therefore, the answer is [tex]\boxed{x=3}[/tex] and we're done!

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