What is the scale factor if a circle's area changes from 8π cm² to 32π cm²?

Scale Factors and Area Relationships

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
Read more
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
16
8
4
2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a trapezoid's area increases from 100 to 6400 square units, what is the scale factor?
64
32
16
8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the perimeter change when a shape is dilated by a scale factor of 3?
It triples
It doubles
It quadruples
It remains the same
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which graph represents the relationship between scale factor and area?
Graph C
Graph A
Graph B
Graph D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the new area of a polygon with an original area of 10 square units and a scale factor of 4?
40
200
100
160
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many times larger is the area of a dilated parallelogram if the scale factor is 2?
3 times
4 times
2 times
5 times
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which solid has cross-sections that are dilations of a 2D shape?
Cylinder
Cube
Cone
Triangular Prism
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the cosine of angle A if the adjacent side is 28 and the hypotenuse is 53?
28/45
45/53
53/28
28/53
Similar Resources on Wayground
2 questions
Understanding Dilations and Similar Triangles

Interactive video
•
9th - 10th Grade
10 questions
Solving Equations and Estimation Concepts

Interactive video
•
9th - 10th Grade
9 questions
Dilation and Triangle Properties

Interactive video
•
9th - 10th Grade
8 questions
Drawing Images of Dilation with Negative Scale Factors

Interactive video
•
9th - 10th Grade
8 questions
Dilation and Similarity in Geometry

Interactive video
•
9th - 10th Grade
10 questions
Geometry Concepts and Applications

Interactive video
•
9th - 10th Grade
11 questions
Scale Factor and Dilation Concepts

Interactive video
•
9th - 10th Grade
2 questions
Understanding Dilation and Parallel Lines on a Cartesian Coordinate Plane

Interactive video
•
9th - 10th Grade
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade