Exploring Circle Concepts

What is the definition of a circle?

• A circle is a straight line that connects two points.

• A circle is the set of all points in a plane that are equidistant from a fixed point called the center.

• A circle is a polygon with three sides.

• A circle is a type of triangle.

What is the radius of a circle?

• The radius is the distance from the center to any point on the circle.

• The radius is twice the length of the diameter.

• The radius is equal to the circumference.

• The radius of a circle is half of its diameter.

Tags

CCSS.HSG.C.A.2

What is the diameter of a circle?

• The diameter is half the circumference.

• The diameter is equal to the radius.

• The diameter of a circle is twice the radius.

• The diameter is the distance from the center to the edge.

Tags

CCSS.HSG.C.A.2

What is the relationship between the radius and diameter?

• The radius and diameter are equal.

• The diameter is half the radius.

• The diameter is twice the radius.

• The radius is twice the diameter.

Tags

CCSS.7.G.B.4

Define the term 'circumference' in relation to circles.

• The circumference is the distance around a circle.

• The circumference is the diameter of a circle.

• The circumference is the area of a circle.

• The circumference is the radius of a circle.

What is the formula for calculating the circumference of a circle?

• C = πd

• C = 2r

• C = πr^2

• C = 2πr

Tags

CCSS.7.G.B.4

What is the area of a circle?

• A = r² + h²

• A = πr²

• A = πd

• A = 2πr

Tags

CCSS.7.G.B.4

What is the formula for the area of a circle?

• A = r²/2

• A = 2πr

• A = πd

• A = πr²

Tags

CCSS.7.G.B.4

State the Inscribed Angle Theorem.

• The measure of an inscribed angle is equal to the measure of the intercepted arc.

• The measure of an inscribed angle is twice the measure of the intercepted arc.

• The measure of an inscribed angle is the same as the central angle that subtends the same arc.

• The measure of an inscribed angle is half the measure of the intercepted arc.

Tags

CCSS.HSG.C.A.2

What does the Tangent-Secant Theorem state?

• The product of the tangent segment and the secant segment equals the square of the external segment.

• The sum of the tangent segment and the secant segment equals the length of the circle's radius.

• The length of the tangent segment is equal to the length of the secant segment.

• The square of the tangent segment length equals the product of the secant segment length and its external segment length.

Tags

CCSS.HSG.C.A.2