Question

8 A piece of string is 8o cm. what will be the length of each side If
the string is used to form a square?​

Answer 1

$\sf \large \underbrace { \underline{Understanding \: the \: Question}}$

It is given that 80cm long string is used to make a square. So length of string will be the perimeter of square.So we can easily find the side of Square by applying formula of perimeter of square.

So let's start!

$\sf \large★Perimeter \: of \: Square=4×Side$

$\Large\sf \to80cm = 4 \times side$

$\Large\sf \to \: \cancel \frac{8 0cm}{4} = side$

$\Large\sf \to \: 20cm = side$

Hence the side of Square is 20cm.

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$\sf \large \underbrace{ \underline{More \: formulae \: to \: know}}$

★Area of square=Side²

★Perimeter of rectangle=2(L+B)

★Area of rectangle=L×B

★Area of ∆=½×Base×height

Answer 2

Answer:

80÷4

=20

Step-by-step explanation: