Answer:
43) √164,000 is not a whole number.
√156,816 = 396
√174,724 = 418
√215,908 is not a whole number.
156,816 ft² and 174,724 ft² are the
correct choices.
44) If the area of a square is 81 square
units, then the length of each side is 9
units.
First figure: 9(12) = 108 units
Second figure:
9 + 27 + 18 + 18 + 9 + 9 = 90 units
Third figure:
18 + 27 + 18 + 9 + 9 + 9 + 9 + 9 =
108 units
The first and third figures have the
same perimeter.
18 + 27 + 18 + 9 + 9 + 9 + 9 + 9 =
9(2 + 3 + 2 + 1 + 1 + 1 + 1 + 1) =
9(12) = 108 units