Measuring Shape and Space Area
Area at Level 2 <ul><li>Aims; On completion of this section Learners will be able to refer to a list of formulae for the a...
Area at Level 2 <ul><li>Before listening to this section, you may like to be sure of your strengths in  </li></ul><ul><li>...
Area at Level 2 <ul><li>At level 2 we shall be expected to be able to calculate the area of some composite shapes </li></u...
Example;  Find the Area coloured blue
Area at Level 2
Formulae for area <ul><li>At level 1 we already know a rectangle has  area= length x width </li></ul><ul><li>We can see fr...
Radius
Area at Level 2 Length=6 units Width=5 units Radius=2.5
Area at Level 2 Length=6 units Width=5 units A=6x5=30 A=3x 2.5x 2.5=18.75
Remember <ul><li>We calculate area in two dimensions, so the area is always given in square units </li></ul><ul><li>So the...
Upcoming SlideShare
Loading in …5
×

Area powerpoint

3,595 views

Published on

Published in: Education, Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
3,595
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Area powerpoint

  1. 1. Measuring Shape and Space Area
  2. 2. Area at Level 2 <ul><li>Aims; On completion of this section Learners will be able to refer to a list of formulae for the area of regular shapes and select those that they need to calculate the area of a composite shape </li></ul>
  3. 3. Area at Level 2 <ul><li>Before listening to this section, you may like to be sure of your strengths in </li></ul><ul><li>Multiplication </li></ul><ul><li>Names of 2-D shapes </li></ul><ul><li>Understanding right angles and parallel lines </li></ul><ul><li>BIDMAS </li></ul>
  4. 4. Area at Level 2 <ul><li>At level 2 we shall be expected to be able to calculate the area of some composite shapes </li></ul><ul><li>These are shapes that are made up of </li></ul><ul><li>Squares </li></ul><ul><li>Rectangles </li></ul><ul><li>Triangles </li></ul><ul><li>Circles </li></ul>
  5. 5. Example; Find the Area coloured blue
  6. 6. Area at Level 2
  7. 7. Formulae for area <ul><li>At level 1 we already know a rectangle has area= length x width </li></ul><ul><li>We can see from this that a triangle is going to have half the area of the rectangle that surrounds it </li></ul><ul><li>Area of a triangle=½xbasex height </li></ul>
  8. 8. Radius
  9. 9. Area at Level 2 Length=6 units Width=5 units Radius=2.5
  10. 10. Area at Level 2 Length=6 units Width=5 units A=6x5=30 A=3x 2.5x 2.5=18.75
  11. 11. Remember <ul><li>We calculate area in two dimensions, so the area is always given in square units </li></ul><ul><li>So the answer to the total area shaded blue is given by </li></ul><ul><li>(6x5)+(0.5x2x2)+(0.5x 3 x2.5x2.5) </li></ul><ul><li>=43.375 square units </li></ul><ul><li>When we use pi=3 </li></ul>

×