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  • Geometry
  • Circles
  • Circle formulas

Circle formulas

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  • Question 1:
    1 pts
    Which expression can be used to find the area of a circle shown on the picture
  • Question 2:
    1 pts
    Which expression can be used to find the perimeter of a circle shown on the picture.
  • Question 3:
    1 pts
    Find the arc length of an arc formed by of a circle with a radius of inches.
  • Question 4:
    1 pts
    Which expression can be used to find the area of a sector,, shown on the picture.
  • Question 5:
    2 pts
    The area of the sector is . Find the length of
  • Question 6:
    2 pts
    A path wide surrounds a circular lawn whose diameter is Which expression can be used to find the area of the path.
  • Question 7:
    2 pts
    Find the distance between the centres of the circles shown on the picture.
  • Question 8:
    2 pts
    Find the perimeter of the figure shown on the picture.
  • Question 9:
    3 pts
    Find the area of the shaded figure shown on the picture, if the area of shown rectangle is .
  • Question 10:
    3 pts
    Find the perimeter of the shaded area shown on the picture.
  • Question 11:
    3 pts
    Find the perimeter of the shaded area shown on the picture, if the radius of the biggest circle is
  • Question 12:
    3 pts
    Find the perimeter of the shaded area shown on the picture.