http://www.ck12.org Chapter 10. Perimeter and Area
Chapter Keywords
- Perimeter
- Area of a Rectangle:A=bh
- Perimeter of a RectangleP= 2 b+ 2 h
- Perimeter of a Square:P= 4 s
- Area of a Square:A=s^2
- Congruent Areas Postulate
- Area Addition Postulate
- Area of a Parallelogram:A=bh.
- Area of a Triangle:A=^12 bhorA=bh 2
- Area of a Trapezoid:A=^12 h(b 1 +b 2 )
- Area of a Rhombus:A=^12 d 1 d 2
- Area of a Kite:A=^12 d 1 d 2
- Area of Similar Polygons Theorem
- π
- Circumference:C=πdorC= 2 πr
- Arc Length
- Arc Length Formula: length ofAB̂=m 360 AB̂◦·πdorm 360 AB̂◦· 2 πr
- Area of a Circle:A=πr^2
- Sector of a Circle
- Area of a Sector:A=m 360 AB̂◦·πr^2
- Segment of a Circle
- Perimeter of a Regular Polygon:P=ns
- Apothem
- Area of a Regular Polygon:A=^12 asnorA=^12 aP
Chapter Review
Find the area and perimeter of the following figures. Round your answers to the nearest hundredth.
- square
- rectangle
- rhombus