Area of a Sector

What is the formula for the area of a sector when the central angle is given in degrees?

• Area = (degree/360) * πr²

• Area = (degree/180) * πr²

• Area = (degree/360) * 2πr

• Area = (degree/π) * r²

What is the area of a sector with a central angle of 80 degrees and a radius of 4 cm, rounded to two decimal places?

• 11.17 cm²

• 16.76 cm²

• 8.38 cm²

• 10.05 cm²

What is the formula for the area of a sector when the central angle is given in radians?

• Area = 1/2 * r * radian

• Area = 1/2 * r² * radian

• Area = r² * radian

• Area = 1/2 * πr² * radian

Calculate the area of a sector with a radius of 3 ft and a central angle of 3π/2 radians, rounded to two decimal places.

• 14.14 ft²

• 28.27 ft²

• 21.21 ft²

• 9.42 ft²