Math, asked by brainy3154, 1 year ago

The area of square is 81 m^ 2 . find its perimeter and length of diagonal

Answers

Answered by jaqueskallis
4
Area of Square = 81 m^2

(Side) ^2 = 81

Side = 9 m

Perimeter = 4 × side

= 4 × 9

= 36 m

Diagonal can be found by using pythagoras formula

i.e. AC ^2 = AB^2 + BC^2 (refer the image attached)
= 9^2 + 9^2
= 81 + 81
= 2 × 81

AC = 9 root 2 m

Diagonal of square can also be found by using the formula

 \sqrt{2 }  \: side
i.e.
9 \sqrt{2}  \: m


Hope it helps!!
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Answered by KK2008
0

Answer:

Perimeter = 36 cm

Diagonal = 12.69 cm

Step-by-step explanation:

Attachments:
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