Every rhombus
(a) has perpendicular diagonals.
(b) is a parallelogram.
(c) has diagonals which bisect each other.
(d) All of (a )(c) are correct.
(e) None of these is correct.
Question 2
A common internal tangent is
(a) A line that touches the inside edge of a circle exactly once.
(b) A tangent line to two circles where the circles are both on the same side of the line.
(c) A tangent line to two circles where the circles are on the opposite sides of the line.
(d) A tangent line to both of two concentric circles.