SOLUTION: In a 30-60-90 triangle the longer leg has length of 7 what is the length of the hypotenuse?

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Question 1174905: In a 30-60-90 triangle the longer leg has length of 7 what is the length of the hypotenuse?
Found 3 solutions by josgarithmetic, ikleyn, MathTherapy:
Answer by josgarithmetic(39613)   (Show Source): You can put this solution on YOUR website!
This triangle is half of an equilateral triangle. Based on how you described your triangle, the long leg is 7; the hypotenuse should therefore be 2*7=14.

If the short leg is L, then hypotenuse is 2L.

Solve for ,... 2L.

Answer by ikleyn(52753)   (Show Source): You can put this solution on YOUR website!
.
In a 30-60-90 triangle the longer leg has length of 7 what is the length of the hypotenuse?
~~~~~~~~~~~~~


Let x = the length of the short leg


Then the length of the hypotenuse is 2x,


and we have this Pythagorean equation



    x^2 + 7^2 = (2x)^2

    x^2 + 49  = 4x^2

        49    = 3x^2

        x^2 = 

         x =  =  =  = 4.04 (rounded).    


The hypotenuse is 2x =  =  = 8.08 (approximately).        ANSWER

Solved, answered and explained.   //   And completed.


/\/\/\/\/\/\/\/


Ignore post by  @josgarithmetic :   this person  does not know  Math
(although claims himself as a tutor).


        Claiming himself as a tutor does not mean to be a tutor.


---------------

After seeing my post, he started to copy from there . . .



Answer by MathTherapy(10549)   (Show Source): You can put this solution on YOUR website!

In a 30-60-90 triangle the longer leg has length of 7 what is the length of the hypotenuse?
I agree with Tutor @IKLEYN 100%. Some of the people in this forum are nothing but quasi-tutors, while others feel they know everything but actually know NOTHING at all. 
How can this person not know that you can use the longer leg of a 30-60-90 triangle, by multiplying the longer leg by 2 and by to get the length of the hypotenuse, or: ?
Then again, he's one of those who doesn't know much about mathematics!
If one doesn't know that, he/she could also SIMPLY do the following: , with H being the length of the hypotenuse.
It's as SIMPLE as that!!
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