10.1 & 10.2 Areas of ... 2011
February 25, 2011
10-1 Areas of Parallelograms and Triangles
10-2 Areas of Trapezoids, Rhombuses, and Kites
Warm
1. Geometrically represent 32
2. Geometrically represent a2
Objective:
Find the areas of parallelograms, triangles,
trapezoids, rhombuses and kites.
3. What is the area of the figure?
Feb 20­10:05 AM
Feb 20­2:28 PM
The Area of a Rectangle
What is Area?
15
A = (b)(h)
?
10
How is it measured?
Feb 20­10:07 AM
The Area of a Parallelogram
Feb 20­10:25 AM
Find The Area of each Parallelogram
15
10
Feb 20­10:25 AM
Feb 20­2:05 PM
1
10.1 & 10.2 Areas of ... 2011
Find the area of the parallelogram.
February 25, 2011
The Area of a Triangle
Find the length of FC.
h
b
Feb 20­2:07 PM
Feb 20­10:16 AM
Find the area of each figure
Lets Recap.
Feb 20­10:41 AM
Feb 20­2:24 PM
The Area of a Kite (and Rhombus)
The Area of a Trapezoid
Feb 20­2:43 PM
Feb 20­2:43 PM
2
10.1 & 10.2 Areas of ... 2011
February 25, 2011
Find the area of each figure.
The Area of a Kite (and Rhombus)
Kite
Feb 20­2:43 PM
The Area of a Circle
A = πr2
Rhombus
Feb 20­3:03 PM
The area of the circle made by Blake Griffin's
windmill dunk is (1681π)in2. How long is his
wingspan?
Feb 20­3:41 PM
Feb 20­3:03 PM
Recap
Homework
Practice #1
&
Pg. 542 (8, 9, 11, 12, 14, 15)
Feb 20­2:29 PM
Feb 20­3:47 PM
3
Attachments
The Office.mp3