laachina125 laachina125

05-04-2018
Mathematics

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Triangle PQR is a right triangle. if PQ= 8 , what is PR?

Triangle PQR is a right triangle if PQ 8 what is PR class=

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WojtekR WojtekR

05-04-2018

It is 30-60-90 triangle, so:

[tex]PR=\dfrac{PQ\cdot\sqrt{3}}{2}=\dfrac{8\cdot\sqrt{3}}{2}=\boxed{4\sqrt{3}}[/tex]

Answer B.

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