*This Math quiz is called 'All About Circles' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.*

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A circle is a geometric shape also known as a “plane”. Any shape such as a line, a circle or a triangle that can be drawn on a flat surface is a “plane.”

Circles are comprised of several different parts that include the following:

Radius

Circumference

Diameter

Chord

Sector

Tangent

Quadrant

Arc

1.

A partial section of the circumference of a circle is known as ______.

a radius

an arc

a diameter

a sector

A partial section of the circumference of a circle is known as an arc. Answer (b) is correct

2.

The distance between the center of a circle and the edge of the circle is known as the ________.

chord

circumference

radius

arc

The distance of a line drawn from the center point of a circle to its edge is known as the radius. Answer (c) is correct

3.

A line that is drawn from one point on the circumference of a circle to another point on the circumference of a circle but that does not go through the center of the circle is known as the ________.

chord

diameter

arc

tangent

When a line is drawn through a circle from one point on the circumference to another point on the circumference but does not pass through the center of the circle is known as a chord. Answer (a) is correct

4.

When a slice is made using a chord, the slice is known as _______.

an arc

a radius

a plane

a segment

A slice of a circle created by a chord is known as a segment. Answer (d) is correct

5.

When a circle is cut in half, the half section is known as _______.

a circumference

an arc

a semicircle

a tangent

The half section of a circle, or half of a circle, is known as a semicircle. Answer (c) is correct

6.

A line that touches the outside of a circle’s circumference but does not pass through the circumference is known as the _________.

quadrant

arc

tangent

sector

A line that touches the outer surface of a circle’s circumference without passing through the circumference is known as the tangent. Answer (c) is correct

7.

A slice of a circle, such as a pizza slice, is known as ______.

an arc

a sector

a quadrant

a chord

A slice of a circle is known as a sector. Answer (b) is correct

8.

A line drawn from one side of a circle that goes through the center of the circle and then reaches the other side of the circle is known as the ______.

circumference

diameter

radius

chord

A line that is drawn through a circle that also passes through the center of the circle and touches the sides of the circle from its origination point to its end point is known as the diameter. Answer (b) is correct

9.

A fourth of a circle is known as ________.

a quadrant

an arc

a segment

a tangent

A fourth of a circle, or a quarter of a circle, is known as a quadrant. Answer (a) is correct

10.

The distance around the edge of a circle is known as the ________.

radius

arc

tangent

circumference

The distance around the edge of a circle is known as the circumference. Answer (d) is correct

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