Unit 1 Scaled Copies Review (OUR Grade 7)

Triangle ABC is a scaled copy of triangle XYZ. Decide if the statement is true or false. If false, think about how you correct the statement to make it true.

Segment YZ is twice as long as segment BC.

• True

• False

Tags

CCSS.8.G.A.3

Triangle ABC is a scaled copy of triangle XYZ. Decide if the statement is true or false. If false, think about how you correct the statement to make it true.

All of the corresponding sides on Figure A are ¼ the size of the same sides on Figure B.

• True

• False

Tags

CCSS.7.G.A.1

Triangle ABC is a scaled copy of triangle XYZ. Decide if the statement is true or false. If false, think about how you correct the statement to make it true.

All of the corresponding angles on Figure A are ¼ the size of the same angles on Figure B.

• True

• False

Tags

CCSS.8.G.A.3

Triangle ABC is a scaled copy of triangle XYZ. Decide if the statement is true or false. If false, think about how you correct the statement to make it true.

The measure of angle XYZ is twice the measure of angle ABC.

• True

• False

Tags

CCSS.8.G.A.3

Triangle ABC is a scaled copy of triangle XYZ. Decide if the statement is true or false. If false, think about how you correct the statement to make it true.

The length of segment XZ is 72 units.

• True

• False

Tags

CCSS.8.G.A.3

Triangle ABC is a scaled copy of triangle XYZ. Decide if the statement is true or false. If false, think about how you correct the statement to make it true.

The area of XYZ is 4 times the area of ABC.

• True

• False

A scale drawing of a rectangular Doctor’s office is 2 inches wide and 3 inches long. What are the actual dimensions of the office?

• 24 feet by 48 feet

• 40 feet by 60 feet

• 30 feet by 52 feet

• 37.5 feet by 65 feet

Tags

CCSS.7.G.A.1

What is the scale without units?

• 1:20

• 2:3

• 1:1,000

• 1:240

Tags

CCSS.7.G.A.1

A rectangle measures 5 inches by 8 inches. Select all of the measurement pairs that could make a scaled copy of the rectangle.

• 1 inch by 1.6 inches

• 10 inches by 4 inches

• 15 inches by 24 inches

• 6 inches by 9 inches

• 500 inches by 800 inches

Tags

CCSS.7.G.A.1

Draw a scaled copy of the polygon on a piece of graph paper using a scale factor of 3/2. Answer the following questions in order:

1. What is the original perimeter?

2. What is the new perimeter?
3. What is the relationship between the original and the new perimeter?

Tags

CCSS.7.G.A.1