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1 point Change 6.5 km to m.  [Hint: 1 km = 1,000 m]

1 point The radius of a gear is 20.0 cm. It turns through an angle of 240.0°. What is the distance a point travels on the surface of the gear (in cm)? (Round your answer to three significant digits.)

1 point Round 0.000337567 to four significant digits.

1 point Classify the angle as acute, right, or obtuse.

1 point Find the measure of the unknown angle

2 points Express the ratio in the lowest terms in fraction form.  [Hint: 1 ft = 12 in] :

1 point Find the circumference of a circle, whose diameter is 28 cm.  [Hint: Use  

1 point How many degrees are in an angle that measures (6π/5) radians?

1 point Write the number in scientific notation.  

2 points Find the perimeter (in cm) and use Heron’s formula to find the area (in cm2) of the triangle. (Use the rules of working with measurements. Round the area to the same accuracy as the least accurate measurement. Round the perimeter to the same precision as the least precise measurement.)