A frame 2 inches wide is placed around a rectangular picture with dimensions 8 inches by 12 inches. What is the area of the frame in square inches?
A line segment joining two points on the circumference of a circle is 1 inch from the center of the circle at its closest point. If the circle has a 2-inch radius, what is the length of the line segment?
(1) seems to be sufficiently detailed
(2) draw a picture in which you have a circle of r=2. from the radius upward (or downward), draw a line of length=1. this is the bisector of the line segment mentioned in the question (let's refer to as L).
Thus you have a right triangle with hypotenuse=2 and leg A=1, so leg B=sqrt(3).
But sqrt(3) is only 1/2 the distance of L. So L is 2sqrt(3).