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sixtomomtermont
17.07.2019 •
Mathematics
Answer ! will give and 30 ! when a circular pizza is cut into six slices using diameters, the total length of the cuts is 18 cm. what is the area of the pizza in square centimeters?
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Ответ:
This tells us that the cuts add up to 18 cm. There is 3 cuts that make 6 slices. 18/3=6 cm for the diameter of the pizza. The equation to find the area of the circle is Area=π r^2 (radius squared). Divide the diameter by 2 to get the radius. 6/2=3. Plug this in for r. A=π 3^2. Simplify this to A=9πcm^2. The units for area is units^2. So the area would be 9πcm^2.
I hope this helps!
Ответ:
I am deliberately putting an answer in so that you can choose a for the other responder. My answer will not be on topic, so you can choose the other person quite easily.
I found it interesting that all regular polygons with sides of 4 and above that are even will be a possible solution to your pizza problem. The circle enclosing the regular polygon will have diameters running through the center if the opposite vertices are connect. I've uploaded three of them. I cannot prove this is so, but it is an interesting fact.
The left one is a decagon
The middle one is an 18 agon (I don't know the proper term)
The right one is a 14 a gon (again I don't know the proper term)
Conclusion
1. Probably all even vertici regular polygons have this feature in common.
2. Next time you order a pizza, think about the regular polygon that created the cuts.
Ответ:
The correct selling price is $29.97.
Step-by-step explanation:
Since we have given that
Cost price of an item = $27
Mark up rate = 11%
So, Amount of mark up would be
So, Amount after mark up would be
Hence, the correct selling price is $29.97.
The manager's likely error is that he has put the selling price the mark up amount only i.e $2.9≈$3 instead of adding the mark up amount to the cost price.