sebastiangonzagonza
  • sebastiangonzagonza
hi can someone help me with geometry
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
your questions?
sebastiangonzagonza
  • sebastiangonzagonza
It's a multi-part question
sebastiangonzagonza
  • sebastiangonzagonza
A Ferris wheel is an amusement park ride comprised of a large wheel rotating on an axis. There are cars or compartments where people can sit or stand that are evenly spaced about the circumference of the circle. The wheel rotates slowly, taking passengers on a ride around the circumference of the circle. Please select one of the following famous Ferris wheels to research: Singapore Flyer London Eye Star of Nanchang You will need to find the diameter and number of compartments (or cars) for the one you chose in order to be able to complete the calculations section of the assignment. Once you have your information, move on to step 2.

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sebastiangonzagonza
  • sebastiangonzagonza
i selected the London Eye
anonymous
  • anonymous
ok and?
sebastiangonzagonza
  • sebastiangonzagonza
Complete the following tasks and calculations. You must show all work and steps to receive full credit. Name of the Ferris wheel Diameter of the wheel (in meters) Number of cars or compartments Circumference of the wheel (in meters) Area of the wheel (in meters) Measure of a central angle in degrees Measure of a central angle in radians Arc length between two cars or compartments Area of a sector between two cars or compartments
sebastiangonzagonza
  • sebastiangonzagonza
i just need help walking through it
sebastiangonzagonza
  • sebastiangonzagonza
so obviously #1 would be The London Eye lol
anonymous
  • anonymous
you need the help from wikipedia
sebastiangonzagonza
  • sebastiangonzagonza
okay
anonymous
  • anonymous
they have the dimensions and all the details
sebastiangonzagonza
  • sebastiangonzagonza
okay thank you
anonymous
  • anonymous
yw
sebastiangonzagonza
  • sebastiangonzagonza
@Hero Hi. can you please help me. Wikipedia doesnt have this information and i need a bit more help
anonymous
  • anonymous
i can help you if you choose singapore flyer...the diameter is 150m
sebastiangonzagonza
  • sebastiangonzagonza
okay
sebastiangonzagonza
  • sebastiangonzagonza
but i do want to be walked through it
anonymous
  • anonymous
ok
anonymous
  • anonymous
theres 28 compartments
sebastiangonzagonza
  • sebastiangonzagonza
i was about to say that lol
anonymous
  • anonymous
i live in singapore btw. lol
sebastiangonzagonza
  • sebastiangonzagonza
really??? thats so cool!! i live in florida
anonymous
  • anonymous
cost SGD30 a ride there
sebastiangonzagonza
  • sebastiangonzagonza
wow 20 us dollars
anonymous
  • anonymous
now we got the first 3 problems out
sebastiangonzagonza
  • sebastiangonzagonza
now i have to find the circumference of the wheel
anonymous
  • anonymous
you know how to calculator that right?
anonymous
  • anonymous
the rest of the questions are calculations
sebastiangonzagonza
  • sebastiangonzagonza
not really
sebastiangonzagonza
  • sebastiangonzagonza
should i do it?
anonymous
  • anonymous
yea you should
sebastiangonzagonza
  • sebastiangonzagonza
i mean how should i do it?
anonymous
  • anonymous
circumference = diameter * pi
sebastiangonzagonza
  • sebastiangonzagonza
okay hold on
sebastiangonzagonza
  • sebastiangonzagonza
so is it 471??
anonymous
  • anonymous
yes
sebastiangonzagonza
  • sebastiangonzagonza
okay
anonymous
  • anonymous
471.239
anonymous
  • anonymous
try not to cut off too much of the decimals, it can affect your calculations later
anonymous
  • anonymous
now we have Area of the wheel (in meters) Measure of a central angle in degrees Measure of a central angle in radians Arc length between two cars or compartments Area of a sector between two cars or compartments to do
sebastiangonzagonza
  • sebastiangonzagonza
okay so how should i calculate the area?
anonymous
  • anonymous
\[A=\pi r^2\]
sebastiangonzagonza
  • sebastiangonzagonza
r is radius, correct??
anonymous
  • anonymous
yup
sebastiangonzagonza
  • sebastiangonzagonza
so r is c/2
sebastiangonzagonza
  • sebastiangonzagonza
547370.9643537529??
anonymous
  • anonymous
no
anonymous
  • anonymous
radius is d/2
sebastiangonzagonza
  • sebastiangonzagonza
OHH okay
sebastiangonzagonza
  • sebastiangonzagonza
55460.25?
anonymous
  • anonymous
|dw:1438968164365:dw|
anonymous
  • anonymous
|dw:1438968220429:dw|
anonymous
  • anonymous
no either
anonymous
  • anonymous
square your radius then multiply by pi
sebastiangonzagonza
  • sebastiangonzagonza
but the diameter is 150?
anonymous
  • anonymous
radius is half of diameter
anonymous
  • anonymous
Area = pi times radius squared
sebastiangonzagonza
  • sebastiangonzagonza
okay so since the radius is half of the diameter it would be 75
sebastiangonzagonza
  • sebastiangonzagonza
then mulitplied by itself it would be 5625
sebastiangonzagonza
  • sebastiangonzagonza
so then 5625*3.14 is 17662.5
anonymous
  • anonymous
correct
anonymous
  • anonymous
now for the central angle, it probably is asking the angle between 2 cars
sebastiangonzagonza
  • sebastiangonzagonza
okay so how should i calculate it?
anonymous
  • anonymous
360 divide by 28 which is the number of cars
sebastiangonzagonza
  • sebastiangonzagonza
12.8571
anonymous
  • anonymous
yes
anonymous
  • anonymous
now we have to convert that to radian
anonymous
  • anonymous
use this formula\[\theta \times \frac{ \pi }{ 180 }\]
sebastiangonzagonza
  • sebastiangonzagonza
what should i put in the calculator
anonymous
  • anonymous
the angle in degree multiply by pi
anonymous
  • anonymous
then divide by 180
sebastiangonzagonza
  • sebastiangonzagonza
0.22428
anonymous
  • anonymous
i have 0.224399 but it doesnt matter much
sebastiangonzagonza
  • sebastiangonzagonza
Okay
anonymous
  • anonymous
the unit for this is rad
sebastiangonzagonza
  • sebastiangonzagonza
so was that for number 6 or 7
anonymous
  • anonymous
Measure of a central angle in radians
sebastiangonzagonza
  • sebastiangonzagonza
oh what was the one in degrees?
anonymous
  • anonymous
12.8571
sebastiangonzagonza
  • sebastiangonzagonza
so now the arc length between two cars or compartments
anonymous
  • anonymous
mutliply the 0.22 something rad with the radius
sebastiangonzagonza
  • sebastiangonzagonza
okay
sebastiangonzagonza
  • sebastiangonzagonza
0.04936778?
anonymous
  • anonymous
how can it be that small
sebastiangonzagonza
  • sebastiangonzagonza
im not sure
anonymous
  • anonymous
0.224399*75
sebastiangonzagonza
  • sebastiangonzagonza
16.829925
anonymous
  • anonymous
ok thats correct
anonymous
  • anonymous
now we have the last questions to deal with
anonymous
  • anonymous
use this formula \[A= \frac{ 1 }{ 2 } \times (\theta - \sin \theta) \times r^2\]theta is your radian
sebastiangonzagonza
  • sebastiangonzagonza
im not sure how to do this
anonymous
  • anonymous
\[\frac{ 1 }{ 2 } \times (0.224399-0.222520) \times 75^2\]
anonymous
  • anonymous
you need to change your calculator to radian mode to get sin theta
sebastiangonzagonza
  • sebastiangonzagonza
5.2846875??
anonymous
  • anonymous
yes
anonymous
  • anonymous
oops wrong
anonymous
  • anonymous
wrong formula loool
anonymous
  • anonymous
\[\frac{ 1 }{ 2 } \times 0.224399 \times 75^2\]
sebastiangonzagonza
  • sebastiangonzagonza
631.1221875?
anonymous
  • anonymous
yes
sebastiangonzagonza
  • sebastiangonzagonza
okay
anonymous
  • anonymous
now we are done!
sebastiangonzagonza
  • sebastiangonzagonza
thank you so much
anonymous
  • anonymous
yw

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