SAT Subject Test Mathematics Level 2

of the lengths of the four sides, which is equivalent to 2(length + width).

Area    of  Rectangle   =   length  ×   width

The area of a 7-by-3 rectangle is 7 × 3 = 21.

90 . Characteristics of a Parallelogram
A parallelogram has two pairs of parallel sides. Opposite sides are equal. Opposite angles are
equal. Consecutive angles add up to 180 degrees.

In the figure above, s is the length of the side opposite the 3, so s = 3.

Area    of  Parallelogram   =   base    ×   height

In parallelogram KLMN above, 4 is the height when LM or KN is used as the base.

Base × height = 6 × 4 = 24.

91 . Characteristics of a Square
A square is a rectangle with four equal sides.