Find the length of the unknown side of the right triangle with sides a, b, and c, where c is the hypotenuse.
-a = 6, b = 21
A) $3 \sqrt { 14 }$
B)159
C) $3 \sqrt { 53 }$
D)135

Question

Quizplus · Accepted Answer

The length of the unknown side (the hypotenuse, c) in a right triangle can be found using the Pythagorean theorem, $c = \sqrt{a^2 + b^2}$. Substituting the given values, $c = \sqrt{6^2 + 21^2} = \sqrt{36 + 441} = \sqrt{477} = 3\sqrt{53}$.

Find the Length of the Unknown Side of the Right 3143 \sqrt { 14 }314​

Find the Length of the Unknown Side of the Right $3 \sqrt { 14 }$