Question

a square sheet of paper has a perimeter of 80cm.what is the length of its side . also find the area of the square sheet​

Answer 1

Answer:

perimeter =80cm

perimeter of square =4×side

hence,

80=4×side

side =80÷4=20cm

Thus ,20 cm is the length.

Also,

Area of Square =side×side

=20×20 =400 square cm.

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Answer 2

Perimeter of Square sheet = 80 cm

=> 4 × side = 80 cm

=> side = $\frac{80}{4}$ cm

=> side = 20 cm

Area of Square sheet = (side)²

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$=> (20)²

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$=> 400 cm²

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