12.7 Similar Solids

# 5 2 2 1 1 yes they are similar scale factor 21 or 21

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: = 1.5 2.5 2 2 = 1 1 • Yes, they are similar • Scale factor = 2/1 or 2:1 1.5 2.5 Just for fun, let’s find the SA &amp; V of the previous 2 cylinders. previous 3 1.5 5 2.5 2 S = 2π r +2π rh 2 Scale Factor? V=πr h 1 2 Ratio of Surface Areas? π S= 18π +30π 18 S = 48π V = 45π S= 4.5π +7.5π 4.5 S = 12π V = 5.625π Scale factor squared! 48π 4 2 2 = or 2 12π 1 1 Ratio of Volumes? 45π 8 23 = or 3 5.625π 1 1 Scale factor cubed! Thm. 12.13 - ~ Solids thm Thm. Solids If 2 ~ solids have a scale factor of a:b, If then the corresponding areas have a 2 2 ratio of a :b , &amp; the corresponding...
View Full Document

## This note was uploaded on 02/12/2011 for the course MTG 3212 taught by Professor Jackson during the Spring '11 term at University of Florida.

Ask a homework question - tutors are online