Question

find the square root of
$find \: the \: square \: root \: of \: \sqrt{220 + \sqrt{21 + \sqrt{16} } }$
​

Answer 1

Answer:

15

Step-by-step explanation:

$\sqrt{220 + \sqrt{21 + \sqrt{16} } }$

$\sqrt{220 + \sqrt{21 + 4} }$

$\sqrt{220 + \sqrt{25} }$

$\sqrt{220 + 5}$

$= \sqrt{225}$

$= 15$

Hope it helps.

Plz mark branliest

Answer 2

Answer:

$\large\bf\underline\red{Question ➡} \\ \\\bf \: simplyfy \: - \: \: \sqrt{220 \sqrt{21 \sqrt{16} } } \\ \\ \large\bf\underline\red{solution➡} \\ \\ \bf \: \sqrt{22 \sqrt{21 + 4} } \\ \\ = \sf \: \sqrt{220 \sqrt{25} } \\ \\ = \sf \sqrt{220 + 5} \\ \\ = \: \: \: \: \: \: \sf \sqrt{225} \\ \\\large{\boxed{\mathfrak\red{\fcolorbox{magenta}{aqua}{15}}}} \\ \\ \\ \bf \underline \blue {point \: to \: be \: know : } \\ \\ \bigstar \: \sf \: in \: such \: type \: of \: questions \: we \: \\ \sf \: should \: first \: solve \: last \: square \: root \: . \\ \sf \: after \: that \: 2nd \: last \: and \: as \: it \: is \: \\ \\ \bf \underline \pink {basic \: knowledge : } \\ \\ \bigstar \: \bf \: \sqrt{16} = 4 \\ \\ \bigstar \: \bf \: \sqrt{25} = 5 \\ \\ \bigstar \: \bf \: \sqrt{225} = 15$