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Laabri

Open Up - Grade 8 - Mathematics - Unit 8 - Lesson 2

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"Source: Open Up Resouces (Download for free at openupresources.org.)"

Asemmisa {{asɛmmisaAhyɛnsode}}
1.

A square has an area of 81 square feet. Select all the expressions that equal the side length of this square, in feet.

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Write the exact value of the side length, in units, of a square whose area in square units is:

36

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Write the exact value of the side length, in units, of a square whose area in square units is:

37

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Write the exact value of the side length, in units, of a square whose area in square units is:

\frac{100}{9}

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Write the exact value of the side length, in units, of a square whose area in square units is:

\frac{2}{5}

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Write the exact value of the side length, in units, of a square whose area in square units is:

0.0001

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Write the exact value of the side length, in units, of a square whose area in square units is:

0.11

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Square A is smaller than Square B. Square B is smaller than Square C.

The three squares’ side lengths are \sqrt{26}, 4.2, and \sqrt{11}.

What is the side length of Square A? Square B? Square C?

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

Find the area of a square if its side length is:

\frac{1}{5} cm

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Find the area of a square if its side length is:

\frac{3}{7} units

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Find the area of a square if its side length is:

\frac{11}{8} inches

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

Find the area of a square if its side length is:

0.1 meters

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

Find the area of a square if its side length is:

3.5 cm

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

Here is a table showing the areas of the seven largest countries.

How much more area is there in Russia than in Canada?

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

Here is a table showing the areas of the seven largest countries.

The Asian countries on this list are Russia, China, and India. The American countries are Canada, the United States, and Brazil. Which has the greater total area: the three Asian countries, or the three American countries?

Asemmisa {{asɛmmisaAhyɛnsode}}
16.

Select all the expressions that are equivalent to 10^{-6}.