Question

What is the perimeter of a square whose area is 225 CM square of 6th class level

Answer 1

Solution : Formula for area of sq. is (side)^2 , side square.

Therefore ,√225 =15cm.

Because 225 is square of 15.


So, perimeter of sq.= sum of all sides of sq.

But, all sides of sq. are congruent ,so all sides are of 15cm.

By formul, sum of all sides 15×4 (4for sides)= 60 cm.

So , perimeter of sq. is 60cm.


Hope useful to you .

Answer 2

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Solution $\rightarrow$

Area of the square = 225 cm²

=> (side)² = 225 cm²

= > (side)² = (15 cm)²

=> side = 15 cm

•°• Perimeter of the square

= 4 × side

= 4 × 15 cm

= 60 cm