Asked by Ak
A chord of length 14cm is midway the radius of the circle .calc. the radius of the cicle.
Answers
Answered by
PayDAG
If 14 cm is midway of the radius, then the radius is 2 times that value.
Answered by
oobleck
I think you mean that the chord intersects the radius at its middle.
So, draw the figure. You will see that you have a right triangle such that
(r/2)^2 + 7^2 = r^2
Now just solve for r.
Or, recognize that you have a 30-60-90 right triangle, and you know the longer leg.
So, draw the figure. You will see that you have a right triangle such that
(r/2)^2 + 7^2 = r^2
Now just solve for r.
Or, recognize that you have a 30-60-90 right triangle, and you know the longer leg.
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