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-BARSIC- [3]
2 years ago
10

Given a side of a Square is 3cm. Find area and perimeter of the square. ​

Mathematics
2 answers:
anastassius [24]2 years ago
8 0

Answer:

Area: 9cm²

Perimeter: 12 cm

Explanation:

Area is length x width

It's a square so length and width are the same

3 times 3 is 9

And to find the perimeter you just add the side lengths

Squares have 4 sides and the given side length is 3 so 3x4 OR 3+3+3+3 is how you get the perimeter.

Allisa [31]2 years ago
5 0

\star  \pink{\frak{Given}}

\\  \\

  • Side of a Square = 3cm

\\  \\

\star  \blue{\frak{To \: find :}}

\\  \\

  • Area of a Square

  • Perimeter of a Square

\\  \\

\star  \orange{\frak{Solution :}}

\\  \\

There are two parts in this question. In first part we have to find area and in second part we have to find perimeter of a Square.

\\  \\

\green{ \text{part \: 1}}

\\

<u>To find Area of a Square </u><u>:</u>

we know:

\bigstar \boxed{ \tt{Area \: of  \: a  \: Square =  }{ \tt{side}^{2} }}

\\

So :

\\

\dashrightarrow \sf{Area \: of  \: a  \: Square =  }{ \sf{side}^{2} }

\\  \\

\dashrightarrow \sf{Area \: of  \: a  \: Square =  }{ \sf{3}^{2} }

\\  \\

\dashrightarrow \sf{Area \: of  \: a  \: Square =  }{ \sf3 \times 3}

\\  \\

\dashrightarrow \sf{Area \: of  \: a  \: Square =  }{ \sf9cm {}^{2} }

\\  \\

\therefore \underline \textsf{ \textbf{Area \: of \: a \: square \:  =  \red{9 {cm} }}} \red{ \bf^{2}}

\\  \\

\green{ \text{part \: 2}}

\\  \\

<u>To find perimeter of square </u><u>:</u>

\\  \\

\bigstar \boxed{ \tt{Perimeter \: of  \: a  \: Square =  }{ \tt4 \times {side}}}

\\  \\

So:

\\  \\

\dashrightarrow \sf{Perimeter \: of  \: a  \: Square =  }{ \sf4 \times side} \\

\\  \\

\dashrightarrow \sf{Perimeter \: of  \: a  \: Square =  }{ \sf4 \times 3} \\

\\  \\

\dashrightarrow \sf{Perimeter \: of  \: a  \: Square =  }{ \sf12cm} \\

\\  \\

\therefore \underline{ \textsf{ \textbf{perimeter \: of \: a \: square \:  =  \red{12cm}}}}

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Find the first term, a1, of an arithmetic sequence if a12 = 38 and a45 = 170.
snow_lady [41]
Standard formula for arithmetic sequence:
an = a0 + d(n-1)

if we use the two terms given, setting a12 as starting term and a45 as the end term an.

170 = 38 + 33d 
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This is the common difference, use it to find the first term.

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monitta

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Step-by-step explanation:

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