Question

Please help I found this one a bit confusing ​

Answer 1

7.2

Explanation:

To reach point D from point C, you need to add 4 to the x-value of point C and take away 6 from the y-value. These numbers are the sides of the hypothetical triangle.

The Pythagorean Theorem states that
`a^2+b^2=c^2`. If we plug the side lengths in for a and b, we get
`4^2 + 6^2 = c^2`. This can be simplified to
`16+36=c^2`, or
`52 = c^2`. If we root both sides, we find that c is equal to
`√(52)`, which is slightly more than 7, at around 7.2.