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Math

posted by on .

In a right triangle I need to find the length of the missing side.

If..
a = ?
b = 1
c = sqrt(5)

I would know what to do if the square root wasn't there or if it were a perfect square but it's not, please help...

(P.S. if I need to I have to keep it in radical form)

  • Math - ,

    a=2
    a^2=c^2-b^2

    a^2=(√5)^2 - 1^2
    a^2= 5 -1
    √a^2 = √4
    a=2

  • Math - ,

    Thank you so much, I understand how to get rid of my square root now

  • Math - ,

    Good, you're welcome.

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