Download presentation

Presentation is loading. Please wait.

Published byJohnny Hern Modified over 2 years ago

1
1 Circle Formulae 2 The area of a circle Tandi Clausen-May Click the mouse

2
2 Click the mouse only when you see or If you click too soon you will miss the best bits. Click the mouse Click to see Click the mouse

3
3 The area of a circle Tandi Clausen-May Click the mouse

4
4 We saw in Circle Formulae 1 that… Circumference = × Diameter Now, what about the area?

5
5 Imagine a circle made out of strands of beads. Open it out. Click the mouse Click to see the circle open

6
6 circumference radius (half the diameter) Let’s watch that again. It’s a triangle! base = circumference Click to see the circle open again height = radius (half the diameter) Click the mouse

7
7 circumference radius (half the diameter) = Circumference × Radius 2 Area of the triangle circle Area of the triangle We know how to find the area of a triangle. Click the mouse = Base × Height 2

8
8 = Circumference × Radius 2 Area Summary Click the mouse

9
9 The End Tandi Clausen-May

Similar presentations

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google