A triangle has sides of the square root of 2 and 3. Which could not be the length of the third side if it is a right triangle?
A. The square root of 7
B. The square root of 11
C. The square root of 13
I do not know how to do these type of problems, so I would really like it if someone were to show me how to do them. :)

Question

A triangle has sides of the square root of 2 and 3. Which could not be the length of the third side if it is a right triangle?
A. The square root of 7
B. The square root of 11
C. The square root of 13
I do not know how to do these type of problems, so I would really like it if someone were to show me how to do them. :)

anonymous · Answer

whoch one do you think is corrcet

anonymous · Answer

B

anonymous · Answer

@rosy_love

anonymous · Answer

why do you think b is you answer?

anonymous · Answer

idk how to do these problems so i just guessed

deana99 · Answer

@raiders88 I just saw this

anonymous · Answer

:) i think you're corrcey

welshfella · Answer

|dw:1431978487780:dw|

welshfella · Answer

by pythagoras
x^2 = (sqrt2)^2 + 3^2
         = 2 + 9
          = 11

welshfella · Answer

B

welshfella · Answer

in any right angled triangle
the square of the hypotenuse (the longest side) = the sum of the squares of the other 2 sides

welshfella · Answer

so if you know the values of any 2 sides of a right angled triangle you use this (Pythagoras) theorem to find the measure of the third side.

welshfella · Answer

Note  this only applies to a right angled triangle - not any triangle