Study

Circles, Semicircles, and Composite Shapes

  •   0%
  •  0     0     0

      Back   Restart
  • What is the radius of the circle?
    AO, BO, EO
  • What is the area of a semicircle with a diameter of 42 cm.
    692.37 cm^2
  • Find the area of the shape. Remember your units!
    26.1 square yards
  • Calculate the area of the shape shown.
    45 km^2
  • Work out the perimeter of the shape.
    12.2476 m
  • A round kiddie pool measures 3 meters from the center to the edge. What is the approximate circumference of the pool? Use 3.14 for pi (ROUND TO NEAREST WHOLE NUMBER)
    19
  • Find the area of the circle. Use 3.14 for the value of π.
    78.5 square inches
  • The circumference of a circle is 20 inches. What is the radius of the circle? Use 3.14 for pi (ROUND TO NEAREST TENTHS PLACE)
    3.2
  • Calculate the area of the shape shown.
    32 m^2
  • What is the circumference?
    37.68 ft
  • What is the perimeter of the semicircle?
    15.42 m
  • What is diameter of the circle?
    AB
  • What is the area of a semicircle with a radius of 28cm.
    1,232 cm^2
  • What is the area of the shape?
    440 cm^2
  • What is the circumference?
    47.1 cm
  • What is the perimeter of the semicircle?
    7.71 ft
  • Work out the area of the shape correct to one decimal place
    1538.6 mm^2
  • A circular swimming pool is being redone. from the center of the pool to the edge is 12 ft. If they want the tile redone around the pool how many feet of tile do they need?
    75.36
  • What is the radius of a circle whose diameter is 15 meters?
    7.5
  • What is the perimeter of the shape?
    52 cm
  • Find the approximate circumference of a circle with a radius of 9. Use 3.14 for pi (DO NOT ROUND)
    56.52
  • Find the diameter of a circle with a circumference of 50 m. Use 3.14 for π. Round your answer to the nearest whole number.
    16 m.
  • Find the area of the shape. Remember your units!
    320 square inches
  • What's name of the centre?
    O is the name centre.
  • What is the circumference?
    69.08 cm
  • A bike wheel has a diameter of 10 inches. What is the circumference of the wheel? Use 3.14 for pi (DO NOT ROUND)
    31.4
  • Find the area of the circle. Use 3.14 for the value of π.
    254.34 square inches
  • What is the approximate circumference of a circle with a diameter of 10? Use 3.14 for pi (DO NOT ROUND)
    31.4
  • Calculate the area of the shape shown.
    33 m^2
  • What is the perimeter of the semicircle?
    5.14 ft
  • What is the circumference?
    50.24 cm
  • Find the area of the shape. Remember your units!
    69.8 square inches
  • What is the perimeter of the semicircle?
    102.8 cm
  • Find the radius of a circle with a circumference of 13 in. Use 3.14 for π. Round your answer to the nearest whole number.
    2 in.
  • What is the area of a semicircle with a radius of 7 cm.
    76.93 cm^2
  • Find the area of the circle. Use 3.14 for the value of π.
    452.16 square miles
  • Find the area of the circle. Use 3.14 for the value of π.
    132.665 square feet
  • What is the area of a semicircle with a diameter of 18m. (π = 3.14)
    127.17m^2
  • The radius of a circle is 5.4 feet. What is its diameter?
    10.8
    • Your experience on this site will be improved by allowing cookies.