1 / 6

Similar Shapes

Similar Shapes. Enlargements. Must multiply each side by same value. (Scale Factor). Scale Factor. 10cm. X 2. 8cm. 5cm. 4cm. 3cm. 6cm. Reductions. Scale factor is less than 1. 8cm. 4cm. Scale Factor 0.5. 3 cm. 6 cm. Corresponding Sides. Similar Shapes Calculations.

kirk
Download Presentation

Similar Shapes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Similar Shapes

  2. Enlargements Must multiply each side by same value (Scale Factor) Scale Factor 10cm X 2 8cm 5cm 4cm 3cm 6cm

  3. Reductions Scale factor is less than 1 8cm 4cm Scale Factor 0.5 3 cm 6 cm Corresponding Sides

  4. Similar Shapes Calculations Steps to Success 5 cm Identify Corresponding Sides Calculate Scale Factor 4 cm Multiply by Scale Factor ? 10 ÷ 4 = 2.5 ? = 2.5 X 5 = 12.5 cm 10 cm

  5. Areas Scale Factor 3 6cm 2cm 3cm 9 cm Areas 54cm2 6cm2 9 times as big! Normal scale Factor 3 Area Scale factor 9 → (32)

  6. For Areas you square the normal scale factor Area = 12cm2 Area? 3cm 4.5cm Normal Scale Factor = 4.5 = 1.5 3 Area Scale factor = 1.52 = 2.25 Big Area = 2.25 X 12 = 27cm2

More Related