Objectives: - Determine if 3-dimensional shapes are similar

- Determine scale factor, ratio of surface areas, & ratio of

volumes of 3-dimensional shapes

- Solve real world problems involving ratio & scale factor

How would you check to see if 3-dimensional shapes are

similar?

Are the two shapes similar?

If so, what is the scale factor

from the smaller to the larger shape?

What is the ratio of their surface

areas?

What is the ratio of their volumes?

Remember how we took the ratios of the

areas of two similar shapes and found their

scale factor?

How do you think we would find the scale

factor of two 3-dimensional shapes if we

knew the ratio of their volumes?

How would you approach this problem?

Assignment:

Section 8.6: problems 9, 10, 12, 13, 15-26, 28,

32a & b