Question

it wasn't 5.20;( find x

Answer 1

ahaha

Answer 2

k

Answer 3

did you try using pythagorean theorem?

Answer 4

you need two know values for that formula

Answer 5

hint:

Answer 6

jim is using hacks

Answer 7

care to explain

Answer 8

man I don't know if its not 5.20 I don't know what it is

Answer 9

this is a 45-45-90 triangle

Answer 10

yup

Answer 11

so that template applies

Answer 12

k nice

Answer 13

yup

Answer 14

new stuff

Answer 15

lol so just what is x

Answer 16

jim why not just use sin or cos

Answer 17

in this case, x = 45

Answer 18

use it to find \(\large x\sqrt{2}\)

Answer 19

you could if you want

Answer 20

yeah use one of the trig formulas.

Answer 21

shannon the i think i previously said that the ans for x was 63.64

Answer 22

yup according to jims template we also get 63.64

Answer 23

we know that one side is 45, and that the sides are equal (from the slashes). this is a right triangle with a = b = 45. we can find c via\[a^2+b^2=c^2\]\[c^2=45^2+45^2\]\[c = \sqrt{45^2+45^2} = \sqrt{2*45*45} = 45\sqrt{2} \approx 45*1.414 = 63.63\]

Answer 24

okay wow I hate this

Answer 25

no that was for a different one 63.63

Answer 26

what do you mean it was for a different one? I'm solving the triangle depicted in the figure. The precise value depends on how many digits used in the calculation, and as the square root of 2 is irrational, there are an infinite number of them. Here's the answer to 50 decimal places:
\[45\sqrt{2} \approx 63.639610306789277196075992589436413535635234391963\]

Answer 27

but that's not the answer for my square picture

Answer 28

what are your answer choices?

Answer 29

it doesn't give me any

Answer 30

does it give you rounding instructions?

Answer 31

no

Answer 32

then maybe they want the exact answer? not sure

Answer 33

usually they'll tell you how to round the answer

Answer 34

so is it 63.63?

Answer 35

you tried \[\large 45\sqrt{2}\] right?

Answer 36

if you're rounding to 2 decimal places, then it's 63.64

Answer 37

ok

Answer 38

you forgot that after the 3 is a 9, so that bumps it up to 64