What is the area of a rectangle that is $11$ units long and $5$ units wide?

Given a circle with a radius of $12$ units and a central angle of $120°$, what is the area of the sector that is not shaded if the shaded sector corresponds to the given central angle? Choose the closest value.

Given that the measure of central angle $\mathrm{QRS}$ is $\theta$ radians in a circle of radius $r$, what is the area of the shaded sector? Choose the correct formula from the options below.

Given a circle with radius $8$ units and a central angle $\theta$ measuring $\frac{2}{3}$ radians, what is the area of the shaded sector?

Given a circle with radius $r$ and a central angle $\theta$ measured in radians, what is the area of the shaded sector formed by this angle?

Which of the following formulas could be used to calculate the area of a sector in a circle with radius $r$ and central angle $\theta$ (in radians)?

Given a regular pentagon with a radius (distance from center to a vertex) of $11$ meters, what is the length of its apothem (the perpendicular distance from the center to a side)?

Given a circle with radius $r$ and a central angle $\theta$ measured in radians, what is the area of the shaded sector formed by this angle?

What is the area of a regular octagon inscribed in a circle of radius $r=6$ meters?