Posted by Isabel on Wednesday, February 20, 2013 at 10:21pm.
Assuming that the 36 feet wide line base is NOT a diameter, make a sketch
let the radius be x
then I see a right-angled triangle where
(x-8)^2 + 18^2 = x^2
x^2 - 16x + 64 + 324 = x^2
-16x = -388
x = 24.25
Thanks! But one question..um, where did you get the triangle?
draw a whole circle
draw a chord AB, your base , = 36
From the centre O draw a line OA , a radius
let the radius be x
so OA = x, the hypotenuse
from the centre draw a perpendicular to AB to hit AB at C
from C to the circle is 8 , so OC = x-8
OCA is a right - angled triangle.
so ...
see above
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