Question

Solve
$\sqrt{45} \times \sqrt{20}$
and state what type of number is (rational or irrational)​

Answer 1

Pls mark as brainliest answer

It’s is rational !!

Answer 2

$</p><p></p><p>\sf \rightarrow \quad \sqrt{45} \times \sqrt{20} </p><p></p><p>\\ \\</p><p></p><p>\sf \rightarrow \quad \sqrt{5 \times 9} \times \sqrt{5 \times 4}</p><p></p><p>\\ \\</p><p></p><p> \sf \rightarrow \quad 3\sqrt{5} \times 2\sqrt{5} </p><p>\\ \\</p><p></p><p> \sf \rightarrow \quad 3 \times 5 \times 2 \\ \\</p><p></p><p> \sf \rightarrow \quad 30 \\ \\</p><p></p><p>$

Hence, The following number is a rational number.