







Cutting a round cake so that it doesn't dry out 
20140826 

James pose la question : I'm wondering if there's a simple way to calculate the area between two parallel chords of a circle equidistant from its diameter, or if I have the area, to find the distance between the two chords.
Here's my "problem". You may have heard of the way of cutting a round cake so that it doesn't dry out  make two parallel cuts (chords) the length of the cake, take the middle piece, then push the two pieces together.
So I know the area of a 12" cake, and I want say, exactly an eighth of the cake. How wide do I cut the centre piece?
Now to get even more difficult, the next day I want another eighth from the centre. How wide do I cut the next pieces, and so on...?
Thanks,
James Harley Weston lui répond. 





Frosting a three layer cake 
20121030 

johnathan pose la question : Each layer of a 3 layer cake is a cylinder with height 7.5 cm. The bottom layer has diamegter 25 cm. The middle layer has dimegter 22.5 cm. The top layer has diameter 20 cm. The surface of the cke is frosted. What area of the cake is frosted. I get 1695.56 but the answer in the book is 2081.3 Penny Nom lui répond. 





The diameter of a cake 
20110606 

nurul pose la question : Best Bakery shop received an order from your school to bake a 5kg of round cake for teachers day celebration. if a kilogram of cake has a volume of 3800cm^3,and the height of cake is to be 7.0cm, calculate the diameter of the baking tray to be used to fit the 5kg cake ordered by your school?(used pai=3.142) Penny Nom lui répond. 





May Lee's cake 
20100918 

Wafa pose la question : May Lee bought a cake which is circular in shape. Her sister ate a quarter of the cake. Given that the area of the top surface of the remaining portion is 520 square cm, find the diameter of the cake. Penny Nom lui répond. 





A 3D cardboard cupcake 
20100130 

Margaret pose la question : Hi,
I'm an art student and I'm attempting to build a 3D cupcake out of cardboard.
I want it to have a circular base of 8.5 inches and sides that are 7'' tall and slope outward so the top of the base is 29'.
The top with the frosting would be a detachable lid made from a cone with a base circumfrance of 29".
My problem is how to cut the side so they will slope out, I'm pretty sure there needs to be a curve, however I don't how to calculate the degree of it.
Ideally I want the sides to be a single piece of cardboard.
I also don't know how to calculate the arc needed to make a cone who's circular base's circumfrence is 29''.
Thanks,
Margaret Stephen La Rocque lui répond. 





A cake must be divided evenly 
20090120 

kelen pose la question : a 10 inch by 10 inch square cake must be divided evenly among 5 people. the top
and all four sides of the cake are frosted. each person must receive the same
amount of cake and the same amount of frosting. there must be no cake left over.
how can this be done? Robert Dawson lui répond. 





Sharing a cake 
20071203 

Nikheel pose la question : Amar baked a cake.
john ate 1/6 of the cake.
susan ate 1/5 of what was left.
chan ate 1/4 of what was left.
cindy ate 1/3 of what was left.
luigi ate 1/2 of what was left.
how much of the original cake was left. Stephen La Rocque lui répond. 





Cutting a cake 
20070913 

Bibi pose la question : how can one cut 8 pieces from a round cake with 3 straight slices of a knife, without moving any of the pieces? Help me explain this.. Stephen La Rocque lui répond. 





Cakes and ribbons 
20010705 

Jennifer pose la question :
 A cake recipe calls for 3 1/4 cups of flour. You already put in 1 3/4 cups. How much more should you add?
 You have 3/4 yard of ribbon. How many 1/8yard pieces can you cut the ribbon into?
Penny Nom lui répond. 





Cutting the cake 
20001005 

Cherie pose la question : How can you divide a cake (circle) into 14 pieces by using only 4 straight lines? Penny Nom lui répond. 

