Arc Length and Sector Area

Front

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

Back

Front

How do you calculate the arc length of a sector?

Back

Front

What is the relationship between the radius and the area of a sector?

Back

The area of a sector increases with the square of the radius. If the radius doubles, the area of the sector increases by a factor of four.

Front

If the radius of a circle is 10 cm and the central angle is 90°, what is the area of the sector?

Back

Front

What is the area of a sector with a radius of 5 inches and a central angle of 60°?

Back

Front

Define the term 'central angle' in the context of a circle.

Back

A central angle is an angle whose vertex is at the center of the circle and whose sides (rays) extend to the circumference.

Front

What is the formula for the area of a circle?

Back

Front

How do you convert degrees to radians?

Back

Front

If a circle has a radius of 8 cm, what is the circumference?

Back

Front

What is the area of a sector with a radius of 4 m and a central angle of 120°?

Back