Lesson 7.1.1-Explore Scale Drawings

Multiple Choice

Which ratio is equivalent to 1:2

• 3:4

• 2:3

• 2:4

• 2:1

Multiple Choice

Which ratio is equivalent to 3:4

• 4:5

• 6:8

• 3:3

• 4:3

Multiple Choice

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7
• 7 to 5
• 5 to 12
• 7 to 12

Multiple Choice

Write the ratio as a fraction in simplest form.

24 players : 3 teams

• 1/8

• 6/3

• 8/1

• 3/6

A unit rate is a rate that is simplified so that it has a denominator (2nd #) of 1 unit.

Driving 60 miles in 1 hour or 60 miles/1 hour

/ = "per"

Multiple Choice

Which is a UNIT rate?

• 100 miles / 3 hours

• 35 miles / 1 hour

• 70 miles / 2 hours

Multiple Choice

Find the unit rate (how many avocados per bag):

42 avocados in 7 bags

• 7 avocados/bag

• 6 avocados/bag

• 7 bags/avocado

• 14 avocados/bag

Fill in the Blank

Find the unit rate:

40 slices in 5 pizzas

______ slices per pizza

Equilateral Triangle

• An equilateral triangle has three equal sides.

• This is an example of a equilateral triangle.

Multiple Choice

Which of these triangles is equilateral?

Isosceles triangle

• An isosceles triangle has two equal sides.

• This is an example of an isosceles triangle.

Multiple Choice

Which of these triangles is isosceles?

Scalene Triangle

• A scalene triangle has no equal sides.

• This is an example of scalene triangle.

Multiple Choice

Which of these triangles is scalene?

Acute Triangle

• An acute triangle has three acute angles.

• Acute angles measure less than 90°

• This is an example of an acute triangle.

Multiple Choice

Which of these is an acute triangle?

Right Triangle

• A right triangle has one angle.

• Right angles measure exactly 90°.

• This is an example of a right triangle.

• Notice that all of the angles add up to be 180 degrees.

• The angles in a triangle always add up to 180 degrees

Multiple Choice

Which of these is a right triangle?

Obtuse triangle

• An obtuse triangle has one obtuse angle.

• Obtuse angles measure more than 90°.

• This is an example of an obtuse triangle.

Multiple Choice

Which of these triangles is obtuse?

Multiple Choice

What is a scale drawing?

• a board of scales
• Bigger or smaller proportion of an actual object.
• a drawing of all types of scale 
• to show how to draw

Multiple Choice

A globe is a

• Scale drawing

• Scale model

Multiple Choice

A map is a

• scale drawing

• scale model

Multiple Choice

The distance from Point A to Point B on a scale drawing is 6 cm. If the scale is 1cm : 10m. What is the actual distance from A to B?

• 6 m
• 10 m
• 18 m
• 60 m

Multiple Choice

Find missing side

• 5
• 7
• 9
• 11

Multiple Choice

Find side length X.

• 30
• 25
• 15
• 40

Multiple Choice

The ratio of girls to boys in the class is 3 to 4. There are 12 girls. How many boys are there?

• 16

• 28

• 4

• 9

Multiple Choice

Rectangle ABCD and rectangle EFGD are similar figures. Which of the following proportions is true for the figures?

• $$\frac{AB}{DE}=\frac{BC}{FG}$$  

• $$\frac{AB}{EF}=\frac{BC}{FG}$$  

• $$\frac{AB}{CD}=\frac{DE}{GD}$$  

• $$\frac{AD}{AB}=\frac{DE}{FG}$$  

Multiple Choice

Triangle ABC and triangle WXY are similar figures. Which of the following proportions is true for the figures?

• $$\frac{AB}{WX}=\frac{BC}{XY}$$  

• $$\frac{AB}{BC}=\frac{WY}{WX}$$  

• $$\frac{AB}{WY}=\frac{BC}{XY}$$  

• $$\frac{AC}{XY}=\frac{BC}{WX}$$  

Multiple Choice

• a

• b

• c

• d

Multiple Choice

• a

• b

• c

• d

Multiple Choice

• a

• b

• c

• d