Download presentation

Presentation is loading. Please wait.

Published byNaomi Hawkins Modified over 8 years ago

1
1 Press Ctrl-A ©G Dear2009 – Not to be sold/Free to use Area of Circles and Elipses Stage 6 - Year 12 General Mathematic (HSC)

2
2 Area of Circle Radius Area = r 2 5 cm = x 5 2 = 25 cm 2 (Exact) ≈ 78.54 cm 2 (Approx) 2 decimal place End of Slide

3
3 60 o 5 cm Area of Sector r Area = x r 2 ≈ 13.1 cm 2 (Approx) 1 decimal place 360 Area = x x 5 2 60 360 Fraction of the circle. Area of the circle. End of Slide

4
4 Area of an Annulus Area = R 2 = x 5 2 = 21 cm 2 (Exact) ≈ 65.97 cm 2 (Approx) 2 decimal place R r - r 2 5cm 2cm - x 2 2 Annulus Grass Garden Area of Large circle. Area of small circle. End of Slide

5
5 3cm 4cm Area of an Ellipse Area = ab = x 3 = 12 cm 2 (Exact) ≈ 37.7 cm 2 (Approx) 1 decimal place x 4x 4 a b Drawing an Ellipse End of Show

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google