Problem 44943. Calculate Amount of Cake Frosting

Created by Pooja Lalan

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Given two input variables</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:rFonts w:cs=\"monospace\"/></w:rPr><w:t>r</w:t></w:r><w:r><w:t> and</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:rFonts w:cs=\"monospace\"/></w:rPr><w:t>h</w:t></w:r><w:r><w:t>, which stand for the radius and height of a cake, calculate the surface area of the cake you need to put frosting on (all around the sides and the top).</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Return the result in output variable</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:rFonts w:cs=\"monospace\"/></w:rPr><w:t>SA</w:t></w:r><w:r><w:t>.</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

28312 Solutions
10082 Solvers

Last Solution submitted on Jun 23, 2021

Last 200 Solutions

Problem Comments

5 Comments

5 Comments

Show 2 older comments

Alessandro A on 14 Feb 2020

This problem is yummy! :-)

Rafael S.T. Vieira on 2 Jun 2020

Simple & interesting.

Ghofran AL-NABELSI on 14 Jun 2020

The same as the surface area of a cylinder but without calculating the area of the bottom surface (circle) of the cylinder:
Original: A=2πrh+2πr2
Modified: A=2πrh+πr2

Weihua Huang on 22 Jun 2020

Having finished all 15 problem just to see what is the leading solution looks like. Then I realize smaller size doesn't mean the solution is better, often it is at the price of understand-ability.
Remember, in most cases, you write program for humans not for machines.

Alexis Snyder on 5 May 2021

Nice

Solution Comments

Solution 4692648

Solution 4554553

1 Comment

1 Comment

Rainbownight on 7 Jan 2021

the ans is 0, because the cake will be eaten.

Solution 2990278

2 Comments

2 Comments

航喻 on 25 Sep 2020

that's good

Gokul Krishna N on 2 Nov 2020

thanks

Solution 2626153

1 Comment

1 Comment

Priya Narayan on 29 Jun 2020

calculating surface area except the base area

Solution 2502182

1 Comment

1 Comment

bowen sui on 9 Jun 2020

easy

Solution 2477813

1 Comment

1 Comment

Mateus Cruz on 5 Jun 2020

I do not think this exercise is correct. As one should not put frosting below the cake, the area of the cake to put frost on is the area of the circle on top of it plus the area of the "bent" rectangle on its sides. Thus:
function SA = func_frosting2(r,h)
ARectangle = pi*r*h;
ACircle = pi*r^2;
SA = ARectangle + ACircle;

I think the current solution is misleading

Solution 2458598

1 Comment

1 Comment

Rafael S.T. Vieira on 2 Jun 2020

simple and fun.

Solution 2244202

1 Comment

1 Comment

srisai vangara on 29 Apr 2020

just tricky one.

Problem Recent Solvers10082

Problem Tags

basic matlab

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 44943. Calculate Amount of Cake Frosting

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers10082

Suggested Problems

More from this Author13

Problem Tags

Community Treasure Hunt

Problem 44943. Calculate Amount of Cake Frosting

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers10082

Suggested Problems

More from this Author13

Problem Tags

Community Treasure Hunt

Players