Question

Which is a perfect square? 6 Superscript 1 6 squared 6 cubed 6 Superscript 5 What is the length of the hypotenuse, x, if (20, 21, x) is a Pythagorean triple

Answer 1

Its B

Explanation:

Answer 2

Explanation:

Hello, by definition a perfect square can be written as
`a^2` where a in a positive integer.

So, to answer the first question,
`6^2` is a perfect square.

(a,b,c) is a Pythagorean triple means the following

`a^2+b^2=c^2`

Here, it means that

`x^2=20^2+21^2=841=29^2 \ \ \ so\\\\x=29`

Thank you.