Arc Length and Sector Area

Front

What is the definition of arc length?

Back

Arc length is the distance along the curved line of a circle's circumference between two points.

Front

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

Back

Circumference = 2πr, where r is the radius of the circle.

Front

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

Back

Area = πr², where r is the radius of the circle.

Front

What is a minor arc?

Back

A minor arc is an arc that is smaller than a semicircle.

Front

What is a major arc?

Back

A major arc is an arc that is larger than a semicircle.

Front

What is a sector of a circle?

Back

A sector is a portion of a circle enclosed by two radii and the arc between them.

Front

How do you calculate the area of a sector?

Back

Area of a sector = (θ/360) × πr², where θ is the central angle in degrees.

Front

How do you calculate the length of an arc?

Back

Length of an arc = (θ/360) × 2πr, where θ is the central angle in degrees.

Front

What is the relationship between the radius and the diameter of a circle?

Back

The diameter is twice the radius (d = 2r).

Front

What is the definition of a rhombus?

Back

A rhombus is a quadrilateral with all four sides of equal length.