Image Source: http://bridge.tm.mbs.ac.uk
In this post we have used Adobe Fireworks to make mini posters of a number of Measurement Formulas for length, area, and volume.
We have not included all shapes, and we have not covered Surface Area. We plan to do these in a future post.
The information presented here is invaluable to students revising Measurement.
Perimeter
Perimeter is the total length around the OUTSIDE of any shape. It is given the special name of “Circumference” when dealing with circular shapes.
Image Source: Passy’s World of Mathematics
Image Source: Passy’s World of Mathematics
Area
The following formulas give the Areas of common shapes such as Squares, Rectangles, Parallelograms, Triangles, Trapeziums, and Circles.
Image Source: Passy’s World of Mathematics
Image Source: Passy’s World of Mathematics
Image Source: Passy’s World of Mathematics
Image Source: Passy’s World of Mathematics
Image Source: Passy’s World of Mathematics
Image Source: Passy’s World of Mathematics
Area of a Rhombus
A Rhombus is a Parallelogram that has all four sides equal. We can work out its area using Base x Height, but we can also work out the same area by multiplying the two internal diagonals together, and dividing by 2.
Image Source: http://www.thefreemathtutor.com
Answers to Rhombus Questions:
Q1. 418 sq cm, 41600 sq mm, 0.0006 sq m.
Q2. 91 sq cm
Q3. (1000×2) / 10 = 200mm.
Q4. (120×2) / 30 = 8m.
Area of a Kite
A Kite is a similar shape to a Rhombus, and its area is obtained by multiplying together its diagonals.
Image Source: http://www.coolmath.com
Summary of Area Formulas
Here is a set of formulas that are used in mathematics for finding areas.
Image Source: http://www.math-videos-online.com
Image Source: http://www.grc.nasa.gov
The following SlideShare Powerpoint contains all of the above formulas as well as Measurement Conversions and Volumes of Prisms.
Click the bottom right hand corner full screen button to view as a presentation.
[slideshare id=9114306&doc=measurementformulasppt-110902171100-phpapp01]
Related Items
Perimeter
Circumference
Area of Simple Shapes
Area of a Circle
Interesting Circles
Composite Areas
Tall Buildings and Huge Water Dam
My Virtual Home
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This PowerPoint is the same as the one shown in the Slideshare Presentation in this post, but has sharper quality images on it. It can be printed out as slides in color on A4 paper, and then enlarged on a color photocopier to A3 and laminated to create mini wall posters for a Math Classroom.
Enjoy,
Passy
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There is a mistake on circumference. Should it not be Pi x 2R NOT 2Pi x R
Thanks Bronwyn. Yes Circumference was messed up in a rush to add Perimeters in, and it had A = instead of C= as well. I have now fixed it up. Thanks for the suggestion.
Well thankyou to you for doing this and doing it so well. So I have stolen it but added a great PDF with lots of revsion exercises. Feel free to steal.
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