Question

By using the table for square roots, find the values of:

$\sqrt{1280}$

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Answer 1

Answer:

$\small\ \mathtt \purple{ = 35.776}$

Step-by-step explanation:

$\small\ \mathtt \purple{ \sqrt{1280} = \small\ \mathtt \pink{ \sqrt{2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 5} } }$

$= \small\ \mathtt \red{2 \times 2 \times 2 \times 2 \times \sqrt{5} }$

$= \small\ \mathtt \blue{16 \times (2.236)}$

$⇉\small\ \mathtt \green{35.776}$

$\pink{ \underline{ \sf ⚘Note:}}$

$[\small\ \mathtt \orange{using \: table \: for \: \: \sqrt{5} :}]$