Question

find the area and perimeter of a square side measuring is 15.4 cm
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Answer 1

Answer:

237.16 it's area

61.6 its perimeter

ANSWER

Answer 2

Given :-

Side of the square = 15.4 cm

To find :-

Area and perimeter of the square

Formula used :-

Area of the square $= {(side)}^{2}$

Perimeter of square $= 4 \times side$

Solution :-

Area of the square :-

$= {(side)}^{2} \: \: \: \: \: \: \: \: \\ = (15.4) {}^{2} \: \: \: \: \: \: \: \: \\ = 15.4 \times 15.4 \\ = 237.16 \: cm {}^{2} \:$

Perimeter of the square :-

$= 4 \times side \: \: \: \: \: \: \: \\ = 4 \times 15.4 \: cm \\ = 61.6 \: cm \: \: \: \: \: \: \: \:$

Formulas of square :-

➠ Area of square = side ^ 2

➠ Perimeter of square = 4 x side

➠ Diagonal of square = a√2

➠ Side of a square when area is given = √a

➠ Side of a square when perimeter is given = perimeter/4