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iwanttogotostanford
 one year ago
a chord 24 inches long is 5 inches from the center of a circle, as shown below. What is the radius of the circle, to the nearest tenth of an inch? (DIAGRAM DRAWN BELOW)
iwanttogotostanford
 one year ago
a chord 24 inches long is 5 inches from the center of a circle, as shown below. What is the radius of the circle, to the nearest tenth of an inch? (DIAGRAM DRAWN BELOW)

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iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.0dw:1444182665406:dw

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.0@zepdrix @freckles @mathway @Nnesha

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1I assume they mean 5 inches perpendicular to the center or something like that. We need to know that those lines form a right angle. Anyway, this is just a simple application of the `Pythagorean Theorem` :)

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1dw:1444182853766:dwIf the chord is length 24, what is this missing side length of the triangle?

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.0we have to use the pythagorean theorem to find out

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1It has something to do with the 24.

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.0oh, half of that

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.0so it would be 12 right?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1dw:1444182954940:dwgood good good :) So NOW you can apply your Pythagorean Theorem to find the radius value.

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.0ok, so v^2=12^2+5^2

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1I'm not sure why you're using v lol but yes the set up looks correct!
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