Finding Area
Upcoming SlideShare
Loading in...5
×
 

Finding Area

on

  • 4,855 views

 

Statistics

Views

Total Views
4,855
Views on SlideShare
4,631
Embed Views
224

Actions

Likes
2
Downloads
212
Comments
1

2 Embeds 224

http://n-communityusm.com 215
http://www.leadlms.com.sg 9

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Finding Area Finding Area Presentation Transcript

  • Area The size of a surface in square units
  • Area of a Rectangle
    • A rectangle with a length of 2 units and width of 3 units has an area of 6 square units .
    • The formula is ;
    • Area of rectangle = length x width
    or base x height 2 3 1 2 3 4 5 6 length width
  • Area of a Square
    • A square is a rectangle with all sides the same, so the formula can be simplified.
    • The formula is ;
    • Area of square = side x side
    2 2 1 2 3 4 side or side squared (side ) 2
  • Area of a Triangle
    • Suppose you have a triangle that is 3 units wide and 2 units high .
      • Notice what shape a triangle makes if you cut it and copy the pieces.
    • It becomes a rectangle whose area is base x height.
    • Notice that two whole triangles can fit into that same rectangle, meaning one triangle is only half of the area of that rectangle
    • therefore; Area of a Triangle = (base x height)/2
    base height Note that the height is always 90 degrees to the base. 2 3
  • Area of a Parallelogram
    • Suppose you have a parallelogram that is 3 units wide and 2 units high .
      • Notice what shape it makes if you cut off the end and put it on the other side.
    • It becomes a rectangle whose area is base x height.
    • therefore; Area of a Parallelogram = base x height
    base height 2 3
  • Area of a Trapezoid
    • Suppose you have a trapezoid that is 7 units wide on the bottom, 1 wide on the top, and 2 units high .
      • Notice what shape it makes if you cut off the ends at half the height and shift upwards.
    • It becomes a rectangle whose base is (top + bottom)/2.
    • therefore; Area of a Trapezoid = (top + bottom)/2 x height
    1 4 2 7 4
  • Summary
    • Area of rectangle = length x width
    length width
  • Summary
    • Area of rectangle = length x width
    • Area of square = side x side
    side side
  • Summary
    • Area of rectangle = length x width
    • Area of square = side x side
    • Area of triangle = (base x height)/2
    height base
  • Summary
    • Area of rectangle = length x width
    • Area of square = side x side
    • Area of triangle = (base x height)/2
    • Area of parallelogram = base x height
    height base
  • Summary
    • Area of rectangle = length x width
    • Area of square = side x side
    • Area of triangle = (base x height)/2
    • Area of parallelogram = base x height
    • Area of trapezoid = (top + bottom)/2 x height
    bottom top height