5^2+10^2=c^2?

Question

to get the hypotneus would I have to divide by 2 or get the square root??? for /2 I get 62.5 which totally looks wrong or if I do the square root I get some long number 11.18................... which looks a little more feesible. what am I doing wrong

Answer 1

You need to take the square root.

5^2 + 10^2 = 25 + 100 = 125 = c^2
If you take the square root of both sides, you get
sqrt(125) = sqrt(c^2) = c
The 11-ish number sounds right, because 120 is larger than 121 which is 11^2 and smaller than 144 which is 12^2

If you think you should be getting an even number out of this, perhaps you read the "10" incorrectly, because 5^2 + 12^2 DOES equal 13^2... Just a thought.

Answer 2

First: get rid of exponents and only square the numbers; and combine "like" terms:

25 + 100 = c^2
125 = c^2

Second: get rid of the exponent > find the square root of both sides:

V`125 = V`(c^2)
11.18 = c
c = 11.18

Answer 3

Nothing. Take the square root, the 11.18 number. That's the correct answer.

Answer 4

You're 11.18... answer is the correct one.

25 + 100 = 125 = c^2
square root both sides...

5*sqrt(5) = c

Answer 5

>find the square root 4 5^2 and 10^2 separately and then add their
answeres up
>the answere u get u find its root and its the answer to the hypotenous

Answer 6

c^2=25+100
c^2=125
√c^2=√125
c=11.18

Doing the square root would be more feasible.

Answer 7

25+100=c^2
c^2=125
c=root 125
c=5root 5

Answer 8

11.18 is the answer forget about the extra digit, they are not significant to your answer