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Lesson 8 - Estimating Square Roots



 1. 

Between which two whole numbers does mc001-1.jpg lie?
a.
4 and 5
b.
3 and 4
c.
2 and 3
d.
1 and 2
 

 2. 

Between which two whole numbers does mc002-1.jpg lie?
a.
5 and 6
b.
3 and 4
c.
6 and 7
d.
7 and 8
 

 3. 

Between which two whole numbers does mc003-1.jpg lie?
a.
5 and 10
b.
10 and 15
c.
15 and 20
d.
none of these
 

 4. 

Between which two whole numbers does mc004-1.jpg lie?
a.
5 and 10
b.
20 and 25
c.
10 and 15
d.
15 and 20
 

 5. 

A square window has an area of 5.29 m2. What are its side lengths?
a.
2.1 m
b.
2.5 m
c.
2.3 m
d.
3.1 m
 

 6. 

A square picture frame has an area of 2025 cm2. What are its side lengths?
a.
45 cm
b.
35 cm
c.
47 cm
d.
42 cm
 

 7. 

The base of a square-based pyramid has an area of 561.69 m2. What are the side lengths of the base?

                                         mc007-1.jpg
a.
29.7 m
b.
23.7 m
c.
37.6 m
d.
32.7 m
 

 8. 

Estimate the length of the hypotenuse of this triangle to two decimal places.

              mc008-1.jpg
a.
about 6.06 cm
c.
about 6.04 cm
b.
about 6.05 cm
d.
about 6.07 cm
 

 9. 

Estimate the length of the hypotenuse of this triangle to two decimal places.

mc009-1.jpg
a.
about 3.05 cm
c.
about 3.02 cm
b.
about 3.14 cm
d.
about 3.04 cm
 

 10. 

Brian is placing two pieces of wood under a square tabletop for support. He wants to place the pieces of wood along the diagonals, as shown. If the table is 3.4 m by 3.4 m, about how long is each piece of wood?

                 mc010-1.jpg

a.
about 4.2 m
c.
about 4.8 m
b.
about 3.4 m
d.
about 3.8 m
 



 
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