Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
highschoolmom2010
Group Title
What is the side length of the smallest square plate on which a 20cm chopstick can fit along a diagonal without any overhang? Round your answer to the nearest tenth of a centimeter.
 one year ago
 one year ago
highschoolmom2010 Group Title
What is the side length of the smallest square plate on which a 20cm chopstick can fit along a diagonal without any overhang? Round your answer to the nearest tenth of a centimeter.
 one year ago
 one year ago

This Question is Closed

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
use fact the diagonal of a square is sqrt2 times side length dw:1375640019150:dw
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
dw:1375640072724:dw
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
is that how i need to set it up?
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
Looks good to me. Do you know where to go from there?
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
eh not really well ....
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
I would use the pythagorean theorem to find the length of the sides. Does that help?
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
so x^2+x^2=20^2 x^2+x^2=400^@
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
Before taking the square root, divide both sides by 2.
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
\(x^2+x^2 = 20^2\) \(2x^2=400\)
 one year ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
haha ok i guess you didn't get my drawing...you could just say \[\sqrt{2} x = 20\] \[x = \frac{20}{\sqrt{2}}\]
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
oh ok \[\frac{ 2x^2 }{ 2 }=\frac{ 400 }{ 2 }\] \[x^2=200\] \[\sqrt{x^2}=\sqrt{200}\]
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
dw:1375640872842:dw what do i do from here
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
Yes, that would be great if you were supposed to have a radical in your answer, but your question says to round to the nearest tenth, so use a calculator (or google) to get the square root of 200.
 one year ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
they want answer as decimal so no point in simplifying radical ...
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
You might want to save @dumbcow's original picture and equation to spend a rainy day in contemplation. If you can remember it the next time you need it, that would be a quicker way of getting to the answer.
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
well if i needed the simple radical i was headed right :DD
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
\[\approx 14.14\]
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
Yes, you simplified the radical very well. And in later classes, you will probably need to leave your answer like that. Rounded to the nearest tenth is one place after the decimal....
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
\[\approx14\]
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
sorry i forgot that for a second
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
\(\approx14.1\)
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
oh well i got that all mixed up
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
You did well.
 one year ago

highschoolmom2010 Group TitleBest ResponseYou've already chosen the best response.0
ty @gypsy1274 & @dumbcow
 one year ago

gypsy1274 Group TitleBest ResponseYou've already chosen the best response.1
Your welcome.
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.