What is the length of the side of a square of area 64 cm 2 -A- 32 cmB- 4 cmC- 16 cmD- 8 cm

The correct option is D 8cmArea of a square = Side × Side ⇒ Side × Side = 64 cm^2 When we look at the factors of 16, 64 = 64 x 1 64 = 32 x 2 64 = 16 x 4 64 ...

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Standard V

Mathematics

Area of Squares and Rectangles

What is the l...

Question

What is the length of the side of a square of area 64 $c m^{2}$ ?

16cm

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8cm

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4cm

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32cm

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Solution

The correct option is B 8cm
Area of a square = Side $\times$ Side
$\Rightarrow$ Side $\times$ Side = 64 $c m^{2}$

When we look at the factors of 16,
64 = 64 x 1
64 = 32 x 2
64 = 16 x 4
64 = 8 x 8
Since the sides have to be equal, it has to be 8 cm long as 8 $\times$ 8 = 64
$∴$ Side will be 8 cm long.

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What is the length of the side of a square of area 64 cm2?

The correct option is B 8cmArea of a square = Side × Side ⇒ Side × Side = 64 cm2 When we look at the factors of 16, 64 = 64 x 1 64 = 32 x 2 64 = 16 x 4 64 = 8 x 8 Since the sides have to be equal, it has to be 8 cm long as 8 × 8 = 64 ∴ Side will be 8 cm long.

What is the length of the side of a square of area 64 $c m^{2}$ ?