Arc Length & Sector Area 2
Diameter
A chord that passes through the center of the circle
Sector Area
A piece of a circle enclosed by two radii of a circle and their intersected arc
Arc
A portion of the circumference of a circle
Circle
All points equidistant from a given point called the center of the circle
Central Angle
An angle formed at the center of a circle
75 cm²
Find the area of the sector
π
Find the exact value of the ARC LENGTH of AB.
Area of a Circle
The amount of space occupied in the interior of a circle
Arc Measure
The degree measure of an arc. It is equal to the central angle that intercepts the arc
Circumference
The distance around the circle
Radius
The distance from the center of a circle to any point on the circle
Arc Length
The length of a portion of a circle
314cm
The radius of a circle is 10 cm. What is the area? (round answer to nearest whole number)
19cm
The radius of a circle is 3 cm. What is the circumference? (round answer to nearest whole number)
12
The radius of the circle in 6 units. What is the diameter?
units²
What are the correct units for the area of a sector?
units
What are the correct units for the length of an arc?
9π cm²
What is the EXACT value of the area of sector AB?
6
What is the missing value in the expression for the ARC LENGTH of AB?
9
What is the missing value in the expression for the AREA of SECTOR AB?
255/360
What is the ratio of the arc measure to the circle?
329/360
What is the ratio of the arc measure to the circle?
Central Angle
an angle whose vertex is the center of a circle