Similarity & Congruence

Similarity & Congruence

Y10 Miss Hancock

Open Ended

Describe what you think the difference between two shapes being Similar or two shapes being Congruent means

WRITE THIS DOWN IF YOU NEED TO:

CONGRUENT means the exact same shape and size (but they could be rotated or translated)

SIMILAR means they are the same shape but have been enlarged. The number that the sides have been multipled by is called the SCALE FACTOR, in this question the scale factor is 5.

Multiple Choice

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary

Multiple Choice

Find the missing side of the large triangle, then, find the PERIMETER of the large triangle.

• the missing side is 12, the perimeter is 24
• the missing side is 12, the perimeter is 36

Multiple Choice

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary

Multiple Choice

What is the scale factor of these similar shapes?

• 10
• 7
• 9
• 11

Multiple Choice

Find missing side

• 5
• 7
• 9
• 11

Multiple Choice

Find the length of x

• x = 1

• x = 2

• x = 7

• x = 1/7

Multiple Choice

Are the following similar? Why or why not?

• Yes, because the corresponding angles are congruent.
• No, the numbers are even
• No, the sides are 2 times larger, but the width is the same.

Multiple Choice

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

Multiple Choice

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

QUESTIONS

Please now do the PDF questions on classroom, please watch the video on the next slide before you do q7.