Area and Arcs

What is the measure of arc GHI?

What is the measure of arc IGJ?

What is the area of circle O? Use the pi button. Use 4 decimal places.

Find the area of Triangle AOB. Use 4 decimal places.

Find the shaded area. Round your final answer to the nearest tenth. Use the pi key.

Find the area of the shaded region. Round your final answer to the nearest tenth. Use the pi key

What region of a circle is defined as the region bounded by two radii and their intercepted arc.

• sector

• segment

• arc

• angle

How does the process for finding the arc length differ from the process for finding the sector area?

• The arc length is a degree while the sector area is labeled in square units.

• The arc length uses π while the sector area does not always use π.

• The arc length and sector area are always equal.

• The arc length requires using the circumference while sector area requires the circle area formula.

What is the area of this trapezoid?

• 64 m

• 72 m

• 72 m²

• 64 m²

Find the arc length.  Leave your answer in terms of π.

• 7/4π

• 7/2π

• 1/8π

• 45π