How do you determine if the lengths #3, 2sqrt10, sqrt41# form a right triangle?

1 Answer
Jul 4, 2018

The Pythagorean Theorem finds any side of a right triangle given the two other sides. We can use this theorem to see if these lengths of sides form a right triangle.

The Pythagorean Theorem Formula is #a^2 + b^2 = c^2#, where #a# and #b# are the lengths of the sides of the triangle and #c# is the hypotenuse, or the longest side.

Therefore, we can set up an equation with the longest side being #c#:
#3^2 + (2sqrt10)^2 = (sqrt41)^2#

Simplify:
#9 + 4*10 = 41#

#9 + 40 = 41#

#49 = 41#

No, #49# does NOT equal #41#. Therefore, these lengths do not form a right triangle.