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General Maths Week 7 Quiz Scale Factors

Total questions: 10

Worksheet time: 8mins

Name
Class
Date
1.

Two shapes are considered ______if they are exactly the same shape but can be of different sizes.

a)

identical

b)

congruent

c)

similar

d)

compatible

2.

Two shapes are considered ______ if they are exactly the same shape (each contains the exact same angles) and size (each have the exact same side measurements).

a)

identical

b)

congruent

c)

similar

d)

compatible

3.

What test of similarity is this?

Two triangles have three corresponding pairs of sides, all in the same ratio.

a)

RHS

b)

SAS

c)

AAA

d)

SSS

4.

A shape is considered an enlargement of another if one shape has side lengths that are all increased by the same ____factor.

a)

scale

b)

scalar

c)

increase

d)

resize

5.

We know in real life the swimming pool is 25 m long. In the photo, the same size pool is only 50 cm.

What scale is the photo using?

a)

50:25

b)

50:2500

c)

50:1

d)

1:50

6.

Write your solution expression for finding the surface area of the Earth if its radius is 6371 km.

7.

For any figure that is scaled by a length scale factor of k, the area will scale by an area scale factor of __

a)

k

b)

1k\frac{1}{k}

c)

k2

d)

k3

8.

How does the volume scale factor of a cube change depending on the length scale factor k?

a)

k

b)

1k\frac{1}{k}

c)

k2

d)

k3

9.
Question Image

Match the job with the maths skill!

a)

Putting Xmas lights on your entire house fence

1.

How to calculate perimeter

b)

Buying a plastic cover for your pool

2.

How to calculate area

c)

Finding how much water is in a rain tank

3.

How to calculate capacity

d)

Putting a 3cm layer of dirt on your garden

4.

How to calculate volume

e)

Tiling your bathroom floor and walls

5.

How to calculate total surface area

10.

Last week I saw my Week 6 Online Exam result and

a)

was happy.

b)

was disappointed.

c)

spoke to my tutor about it because I thought I did better.

d)

We had an exam last week?!?