Question

Please help I found this one a bit confusing ​

Answer 1

Answer:

7.2

Step-by-step 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 $\sqrt{52}$, which is slightly more than 7, at around 7.2.