Mickey's Super-ears
Geometry
Level
5
Two lines intersect each other forming a right angle. A unit circle (radius 1) is tangent to both of these lines. Two equal size circles with radius are:
(1) tangent to this circle,
(2) tangent to each other, and
(3) each tangent to one of the lines,
as shown in the figure above.
Calculate to two decimal places.
by
Marta Reece