A chord of length 14cm is midway the radius of the circle .calc. the radius of the cicle.
2 answers
If 14 cm is midway of the radius, then the radius is 2 times that value.
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.
1 answer