1.   Find the circumference. Round the answer to the nearest tenth.
   
    A. 25.1 in. B. 28.3 in.
    C. 282.6 in. D. 14.1 in.
    Hint

  2.   Classify the angle whose measure is 100°.
    A. straight B. right
    C. obtuse D. acute
    Hint

  3.   The sum of the measures of the angles of a regular octagon is 1,080°. Find the measure of one of its angles.
    A. 135° B. 90°
    C. 120° D. 108°
    Hint

  4.   Evaluate 212.
    A. 422 B. 441
    C. 421 D. 442
    Hint

  5.   Which is not a perfect square?
    A. 144 B. 169
    C. 48 D. 100
    Hint

  6.   Which formula represents the Pythagorean Theorem?
   
    A. a + b = c B. c2 = a2 + b2
    C. c2 = a2 - b2 D. a2 = b2 + b2
    Hint

  7.   Find the area of the circle. Round the answer to the nearest tenth. Use
   
    A. 118.3 square centimeters B. 113.0 square centimeters
    C. 452.2 square centimeters D. 37.7 square centimeters
    Hint

  8.   Find the area of a circular swimming pool cover if the radius of the cover is 7.5 feet. Use and round the answer to the nearest square foot.
    A. 44 ft2 B. 47 ft2
    C. 148 ft2 D. 177 ft2
    Hint

  9.   How can you find the distance around a circle?
    A. all answers are correct
    B. evaluate the formula for the circumference
    C. draw a polygon that closely matches the circle, then measure the sides of the new polygon
    D. use string to measure around a circle, then measure the string
    Hint

  10.   Find the exact area of the triangle on a 1 centimeter grid.
   
    A. 9 cm2 B. 15 cm2
    C. 10 cm2 D. 9.5 cm2
    Hint



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