Topics in Circles

Circles

Circles are simple shapes of Euclidean geometry. A circle consists of those points in a plane which are at a constant distance, called the radius, from a fixed point, called the center.

A chord of a circle is a line segment whose both endpoints lie on the circle. A diameter is a chord passing through the center. The length of a diameter is twice the radius. A diameter is the largest chord in a circle.

Circles are simple closed curves which divide the plane into an interior and an exterior. The circumference of a circle is the perimeter of the circle, and the interior of the circle is called a disk. An arc is any connected part of a circle.

A circle is a special ellipse in which the two foci are coincident. Circles are conic sections attained when a right circular cone is intersected with a plane perpendicular to the axis of the cone.

Many students find circles difficult. Students feel overwhelmed with circles homework and tests. Now finding circles help is easier. TuLyn is a one-stop solution for mastering hundreds of math topics.

At TuLyn, we have hundreds of circles video tutorials, circles word problems, and circles worksheets. Our circles videos replace text based circles tutorials and give you better step-by-step explanations of circles. Watch each video repeatedly until you understand how to approach circles problems and how to solve them.
  • Hundreds of video tutorials on circles make it easy for you to better understand the concept.
  • Hundreds of word problems on circles give you all the practice you need.
  • Hundreds of printable worksheets on circles let you practice what you have learned by watching the video tutorials.

Top Circles Video Tutorials

See All Circles Videos

circles, curves, degree, fractions, geometry, math, number sense, numbers, plane figures, shapes, circle equation, completing the square, equations, quadratic equations, solving equations, solving quadratic equations, area, arithmetic, arithmetic operations, decimals, diameter, exponents, multiplication, multiplication of decimals, multiplying decimals, operations, operations with decimals, radius, circumference, center, .

Top Circles Worksheets

See All Circles Worksheets

circles, circumference, curves, geometry, plane figures, shapes, .

Top Circles Word Problems

  • Problem 1:
    Sarah had an idea, what would happen if you put a golf ball inside a basketball? How much room would there be inside the basketball afterwards. Her golf ball has a radius of 1.68 inches while her basketball has a diameter of 9.4 inches. How much space will be left over after the golf ball is placed inside the basketball?
    see details
    (circle equation word problems, circles word problems, curves word problems, equations word problems, plane figures word problems, shapes word problems)
  • Problem 2:
    Two satellites are orbiting earth. The path of one has the equation x2 +y2 = 2250000. The orbit of the other is 200 km farther fro the centre of earth. In one orbit, how much farther does the second satellite travel than the first one?
    see details
    (circle equation word problems, circles word problems, curves word problems, equations word problems, plane figures word problems, shapes word problems)
  • Problem 3:
    a circle with radius 5 has its center at (4,1). the line x-2y+4=0 intersects the circle. find the intersections
    see details
    (circle equation word problems, circles word problems, curves word problems, equations word problems, plane figures word problems, shapes word problems)

See All Circles Word Problems

Circles Books

Circles Help

See Also

Your Ad Here
Your Ad Here
NySphere International, Inc. © 2008 All Rights Reserved. Helping students with math since 2007. Table of Contents
Many students find circles difficult. At TuLyn, we have hundreds of free circles video tutorials, printable circles worksheets, and circles word problems to help you better understand circles and get better grades.