Similarity in Circles

​

​

​https://www.youtube.com/watch?v=SSsdsff5QBg

Multiple Choice

True or False

All circles are similar.

• True

• False

​

​

​

​

​

​

​

​

Multiple Choice

Write a ratio in simplest form comparing the two radii.

• 2:4

• 1:2

• 4:16

• 1:4

Multiple Choice

The circumference of Circle A is 24π feet.

The circumference of Circle B is 4π feet.

What is the ratio of their radii in simplest form?

• 24:4

• 48:8

• 1:6

• 6:1

Multiple Choice

Two circles have a scale factor of 3:8. If the circumference of the second circle 64 feet, find the circumference of the first circle.

• 21 1/3 feet

• 24 feet

• 38 feet

​

​