SSC CHSL 4 Aug 2021 Shift 1 Paper

Section: Quantitative Aptitude

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Question : 66 of 100

Marks: +1, -0

What is the perimeter (in

{cm}

) of an equilateral triangle whose height is

3.46 {cm}

? (Take

√{3}=1.73

)

$10.4$
9
6
12

Solution:

Given,

√{3}=1.73

and height of the equilateral triangle

\;\; =3.46 {cm}

\;{√{3}}/{2} a \;\; =2 √{3} {cm}

a \;\; =2 × 2 ⇒ 4 {cm}

\;\text " (here "\; a \;\; =\;\text " side of equilateral triangle) "\;

∴ \;\text " Perimeter of an equilateral triangle "\;

\;\; =4+4+4=12 {cm}

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