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2 items are filed under this topic.
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Three circles |
2007-09-29 |
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From Kevin:
3 given circles of R80, R56 & R24 are all in contact. The 2 smaller ones are inscribed in the big one.
Find by calculation or graphically (both if possible) the radiusof a 3rd circle which will be in contact with all 3 given circles.
Answered by Chris Fisher. |
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Surface area of a contact lens |
2000-06-06 |
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From Evie Contreras:
I would like to know how to calculate the surface area of a contact lens with a radius of 7mm? I know that the area of a circle is pi R squared, but a contact lens has a dome.
Answered by Harley Weston. |
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