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Lesson 4 - Drawing a Similar Polygon



 1. 

This trapezoid is enlarged by a scale factor of 2.5. What will the side lengths of the enlarged trapezoid be?

         mc001-1.jpg
a.
12.5 cm, 7.5 cm, 12.5 cm, 22.5 cm
b.
1.2 cm, 2 cm, 1.2 cm, 3.6 cm
c.
1.25 cm, 0.75 cm, 1.25 cm, 2.25 cm
 

 2. 

This kite is reduced by a scale factor of mc002-1.jpg. What will the side lengths of the reduced kite be?
                  mc002-2.jpg
a.
12 cm, 18 cm, 18 cm, 12 cm
b.
9 cm, 6 cm, 6 cm, 9 cm
c.
6 cm, 9 cm, 9 cm, 6 cm
 

 3. 

mc003-1.jpg is enlarged by a scale factor of 300%. What will the side lengths of the enlarged triangle be?
                    mc003-2.jpg
a.
1.2 cm, 1.6 cm, 0.7 cm
b.
10.8 cm, 14.4 cm, 6.3 cm
c.
1080 cm, 1440 cm, 6300 cm
 

 4. 

Refer to mc004-1.jpg from question 3. If the triangle is enlarged by a scale factor of 1.5, what will the angle measures of the enlarged triangle be?
a.
25°, 70°, 85°
b.
37.5°, 105°, 127.5°
c.
16.7°, 46.7°, 56.7°
 

 5. 

Refer to mc005-1.jpg from question 3. If mc005-2.jpg is reduced by a scale factor of 0.6, what will the side lengths of the reduced triangle be?
a.
6 cm, 8 cm, 3.5 cm
b.
21.6 cm, 28.8 cm, 12.6 cm
c.
2.16 cm, 2.88 cm, 1.26 cm
 

 6. 

A photo that measures 10 cm wide by 15 cm long is enlarged 325%. What are the dimension of the enlarged photo?

             mc006-1.jpg
a.
325 cm wide by 487.5 long
b.
32.5 cm wide by 48.75 long
c.
3.25 cm wide by 4.875 long
 

 7. 

Refer to the photo in question 6. The photo is reduced by a scale factor of mc007-1.jpg. What are the dimension of the reduced photo?
a.
25 cm wide by 37.5 cm long
b.
40 cm wide by 60 cm long
c.
4 cm wide by 6 cm long
 

 8. 

On a map, 1 cm represents 5 km. The distance between two towns is 90 km. What is the distance between the two towns on the map?
a.
18 cm
b.
15 cm
c.
21 cm
 

 9. 

On a map, 1 cm represents 20 km. The distance between two towns on the map is 8 cm. What is the distance between the two towns?
a.
200 km
b.
160 km
c.
140 km
 

 10. 

Two similar regular pentagons are constucted using a scale of 2 : 5. The side lengths of the smaller pentagon are 6 cm. What are the side lengths of the larger pentagon?
a.
30 cm
b.
25 cm
c.
15 cm
 



 
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