ALG I Circumference and Area of A Circle

Front

What is the definition of a Chord in a circle?

Back

A chord is a line segment whose endpoints lie on the circle.

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2 × π × radius or Circumference = π × diameter.

Tags

CCSS.7.G.B.4

Front

If the radius of a circle is 9 meters, what is the circumference?

Back

56.52 meters.

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the radius (Diameter = 2 × Radius).

Tags

CCSS.7.G.B.4

Front

What is the radius of a circle with a diameter of 70 m?

Back

35 m.

Tags

CCSS.7.G.B.4

Front

What is the definition of the radius in a circle?

Back

The radius is the distance from the center of the circle to any point on its circumference.

Front

If a circle has a diameter of 6 meters, what is its circumference?

Back

18.84 meters.

Tags

CCSS.7.G.B.4

Front

What is the value of π (pi) approximately?

Back

π is approximately 3.14.

Tags

CCSS.HSG.GMD.A.1

Front

What is a Sector in a circle?

Back

A sector is a region enclosed by two radii and the arc between them.

Front

What is the formula to find the area of a circle?

Back

Area = π × radius².

Tags

CCSS.7.G.B.4