Angles and Measurement
Proportional Reasoning
Scale Factors
Can you spot the pattern?
Input/Output
Function rule: 20b – 5
Function rule: 20b – 5
100
The definition of an acute angle
What is an angle less than 90 degrees but greater than zero degrees?
also acceptable: between 0 and 90 degrees
an angle that closes
also acceptable: between 0 and 90 degrees
an angle that closes
100
Write as a proportion:
13:x = 6:18
13:x = 6:18
What is 13⁄x = 16⁄18?
100
Don made a scale drawing of the middle school.
The gym, which is 52 feet wide in real life, is 26 inches wide in the drawing.
What scale did Don use for the drawing?
1 in = _____ ft
The gym, which is 52 feet wide in real life, is 26 inches wide in the drawing.
What scale did Don use for the drawing?
1 in = _____ ft
What is 2 ft?
100
2, 4, 6, 8, 10, ___
What is 12 and the pattern is adding 2 each time or multiples of two.
100
Function rule: 20b – 5
Input = 2
Output = ____
Input = 2
Output = ____
What is 35?
200
This type of angle is less than 180 degrees but greater than 90 degrees.
What is an obtuse angle?
200
Solve this proportion:
What is 9?
200
The scale of a map is 3 cm = 11 mi. If the map length of the map is 66 cm, how long is the actual land?
What is 242 miles?
200
What is triangle. The pattern is circle, square, triangle, triangle.
200
Function rule: 20b – 5
Input = ____
Output = 75
Input = ____
Output = 75
What is 6?
300
Look at the picture below.
What is the name for this angle pair?
What is the name for this angle pair?
What is supplementary angles?
300
Fill in the missing number to complete the proportion.
3:___= 9:15
3:___= 9:15
What is 5?
300
Donovan made a scale drawing of a swimming pool.
He used the scale 1 millimeter = 2 meters.
In the drawing, the pool is 6 millimeters wide.
What is the width of the actual pool?
He used the scale 1 millimeter = 2 meters.
In the drawing, the pool is 6 millimeters wide.
What is the width of the actual pool?
What is 12 meters?
300
6, 7, 9, 10, 12, 13, 15, ___
What is 16 and the pattern is add one, add two?
300
Function rule: 20b – 5
Input = 8
Output = _____
Input = 8
Output = _____
What is 155?
400
What type of angle is angle DPB?
What is a right angle?
400
Fill in the missing number to complete the proportion.
3 to 2 = 9 to ___
3 to 2 = 9 to ___
What is 6?
400
There is a scale model of a particular Egyptian pyramid that is 2 feet tall, and it has a base length of 1.3 feet.
The actual height is 22 feet tall, but the length across the base is unknown.
What is the base length of the actual pyramid?
The actual height is 22 feet tall, but the length across the base is unknown.
What is the base length of the actual pyramid?
What is 14.3 ft?
400
How many triangles will be in the next shape?
What is 16?
Pattern: square numbers, adding the next odd number of triangles
Pattern: square numbers, adding the next odd number of triangles
400
Function rule: 20b – 5
Input = _____
Output = 235
Input = _____
Output = 235
What is 12?
500
What type of angle is this and what is its measurement?
What is an obtuse angle and 125 degrees?
500
Set up and solve this proportion:
Lee is reading a novel for school.
It takes her 6 days to read the first 132 pages.
How long will it take her to read the whole book if it is 374 pages long?
Lee is reading a novel for school.
It takes her 6 days to read the first 132 pages.
How long will it take her to read the whole book if it is 374 pages long?
What is 17 days?
500
Shereece drew a scale drawing of a neighborhood park.
The scale she used was 1 centimeter = 2 meters.
The volleyball court is 16 meters long in real life.
How long is the volleyball court in the drawing?
The scale she used was 1 centimeter = 2 meters.
The volleyball court is 16 meters long in real life.
How long is the volleyball court in the drawing?
What is 8 cm?
500
1, 1, 2, 3, 5, 8, 13, ___
What is 21 and the pattern is adding the two previous terms
500
Function rule: 20b – 5
Input = 15
Output = _____
Input = 15
Output = _____
What is 295?