Ask
your own question, for FREE!
Mathematics
31 Online
OpenStudy (kymber):
An octagon has side length 10.9 in. The perimeter of the octagon is 87.2 in cm and the area is 392.4 in2. A second octagon has corresponding side lengths equal to 21.8 in. Find the area of the second octagon. Round to the nearest hundredth.
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
do you have the choices for the possible answers?
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
thehearken:
anyone have tips on how to remember how to solve for volume and surface area in p
Twaylor:
what are some common allergies from shampoo and conditioner (im having trouble wi
notmeta:
Does anyone have any tips on how to memorize 30-60-90 and 45-45-90 triangles? I k
laylasnii13:
Poem: I don't have a name for it yet By: Layla aka me I learned how to smile before I learned how to speak about pain.
TJH:
I have a question for people who are leaving junior year going to senior year. Wh
MELLYWRLD:
Turn my life upside down Then ud see a smile no frown I have no friends its not how it sounds Why call 911 we I say 9 three times Yeah wild the world thinks
Twaylor:
are police chases more dangerous to civilians than just letting the people in the
thehearken:
anyone have tips on how to remember how to solve for volume and surface area in p
19 hours ago
6 Replies
1 Medal
Twaylor:
what are some common allergies from shampoo and conditioner (im having trouble wi
21 hours ago
4 Replies
0 Medals
notmeta:
Does anyone have any tips on how to memorize 30-60-90 and 45-45-90 triangles? I k
22 hours ago
6 Replies
0 Medals
laylasnii13:
Poem: I don't have a name for it yet By: Layla aka me I learned how to smile before I learned how to speak about pain.
14 hours ago
2 Replies
0 Medals
TJH:
I have a question for people who are leaving junior year going to senior year. Wh
1 day ago
15 Replies
2 Medals
MELLYWRLD:
Turn my life upside down Then ud see a smile no frown I have no friends its not how it sounds Why call 911 we I say 9 three times Yeah wild the world thinks
1 day ago
1 Reply
0 Medals
Twaylor:
are police chases more dangerous to civilians than just letting the people in the
2 days ago
7 Replies
3 Medals