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8.3.A.01 - What Lies Behind “Same Shape”? - Exit Ticket

Last updated about 4 years ago

3 questions

10

Question 1

1.

Why do we need a better definition for similarity than “same shape, not the same size”?

10

10

Question 2

2.

Use the diagram below. Let there be a dilation from center O with scale factor r = 3.Then Dilation (P) = P'. In the diagram below, |OP| = 5 cm. What is |OP'|?

Show your work.

Question 3

3.

Use the diagram below. Let there be a dilation from center O. Then Dilation (P) = P'.In the diagram below, |OP| = 18 cm and |OP'| = 9 cm. What is the scale factor r?

Show your work

From EngageNY.org of the New York State Education Department. Grade 8 Mathematics Module 3, Topic A, Lesson 1. Internet. Available from https://www.engageny.org/resource/grade-8-mathemat...; accessed 17/Nov/2015.