Determine the length of side CB.
If x = 3 and the area of the rectangle = 21, what is the length of the other side of the rectangle?
Given that angle A is an angle found in the first Quadrant. What is the measure (in radians) of another angle that has the same cosine value as angle A?
A) π/2 + A
B) π - A
C) π + A
D) 2π - A
Where would an imaginary line need to be drawn to reflect across an axis of symmetry so that a regular pentagon can carry onto itself?
A) any angle to any angle
B) any angle to the farthest angle
C) any angle to the next closest angle
D) any angle to the center of the side opposite the angle
E) the center of any side to the center of any other side