Question

(ii) If the diagonal of a square is 12root2
cm then the perimeter of square is
Acti​

Answer 1

Let one side of the square be s

[Drawing a diagonal will divide the figure into 2 right triangles]

Using Pythagoras Theorem:

s² + s² = (12√(2))²

2s² = 144 × 2

s² = 144

s = √(144)

s = 12 cm

We know:

Perimeter of a square = 4 × Side

So perimeter = 4 × s

= 4 × 12

= 48 cm [Answer]

Answer 2

Answer:

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Step-by-step explanation:

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