Question

71.
Perimeter of square is 48 cm. So length of its diagonal will be


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Answer 1

Answer:

using formula P=4 a

Step-by-step explanation:

a=P/4

=48/4

=12cm

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Answer 2

Answer:

First we will find the side of the square

$\texttt{permeter = 4} \tt \times s \\ 48 \tt \: cm = 4 \times s \\ \tt \: s = \dfrac{ \cancel{ \: \: 48 \: \: }^{ \: \: 12 \: } }{ \cancel{ \: 4 \: \: \: }} \\ \tt \: s = 12$

$\therefore \: \tt \: diagonal = s \sqrt{2} = 12 \sqrt{2}$