Civil Service Exam Reviewer · Measurement and Geometry · easy

What is the circumference of a circle with a diameter of 13 cm? (Use π = 3.14)

  1. 81.64 cm
  2. 132.67 cm
  3. 20.41 cm
  4. 40.82 cm

Answer

D. 40.82 cm

Solution

C = πd = 3.14 × 13 = 40.82 cm.

More Measurement and Geometry questions

  1. What is the supplementary of a 32° angle?
  2. What is the area of a triangle with a base of 20 cm and a height of 26 cm?
  3. What is the area of a square measuring 7 m by 7 m?
  4. What is the perimeter of a rectangle 18 m long and 6 m wide?
  5. How many m are in 8.2 km?
  6. The diagonal of a square is 4 cm. What is its area?
  7. The length and width of a rectangle are in the ratio 4 : 3, and its perimeter is 70 m. What is its area?
  8. A rectangular tank 1 m × 1 m × 1 m is filled by a hose delivering 40 liters per minute. How long will it take to fill the tank?
  9. A 10-m ladder leans against a wall with its foot 6 m from the wall. How high up the wall does it reach?
  10. How many diagonals does a polygon with 7 sides have?

All Measurement and Geometry questions