Similar shapes

Question 1

Definition of similar shape

Answer 1

Similar shapes are exactly the same shape, but can be different sizes. They can also be rotated or reflected.

Similar - same shape, different size.

Question 2

There are three special conditions for triangle - if any one is true, you know that they are similar.

List the 3 conditions.

Answer 2

All angles match up (i.e. The angles in one triangle are the same as the other)

All three sides are proportional (i.e. If one side is twice as long as the corresponding side in the other triangle, all the sides are twice as long as the corresponding sides.)

Any two sides are proportional and the angle between them is the same.

Question 3

How can you use the properties of similar shapes to find missing distances, lengths, etc.

Answer 3

Use scale factors

Question 4

What is the difference between congruent shapes and similar shapes?

Answer 4

Similar shapes are alike but not the same

Congruent shapes are identical

Question 5

What saying helps you remember the difference between congruent shapes and similar shapes?

Answer 5

Similar siblings, congruent clones.

Siblings are alike but not the same, clones are identical.