Arc Length Formula: length of ABˆ=mABˆ360∘⋅πd or mABˆ360∘⋅2πr
Area of a Circle: A=πr2
Sector of a Circle
Area of a Sector: A=mABˆ360∘⋅πr2
Segment of a Circle
Perimeter of a Regular Polygon: P=ns
Area of a Regular Polygon: A=12asn or A=12aP
Find the area and perimeter of the following figures. Round your answers to the nearest hundredth.
Find the area of the following figures. Leave your answers in simplest radical form.
Find the area and circumference of a circle with radius 17.
Find the area and circumference of a circle with diameter 30.
Two similar rectangles have a scale factor 43. If the area of the larger rectangle is 96units2, find the area of the smaller rectangle.
Find the area of the following figures. Round your answers to the nearest hundredth.
Find the shaded area (figure is a rhombus)
Texas Instruments Resources
In the CK-12 Texas Instruments Geometry FlexBook® resource, there are graphing calculator activities designed to supplement the objectives for some of the lessons in this chapter. See http://www.ck12.org/flexr/chapter/9695.