Question

if a smaller square of side 3 cm is cut out from a bigger square of side 9 cm to form a new shape ,What is the perimeter of the new shape formed?

Answer 1

Need to find:

• Perimeter of new square formed?

$~$

Solution:

• Side of smaller square = 3cm.
• Side of Bigger square = 9cm

$~$

Using formula:

• Perimeter of square = 4 × side

$~$

Perimeter of smaller square:

⟹ 4 × 3

⟹ 12 cm

$~$

Perimeter of Bigger square:

⟹ 4 × 9

⟹ 36cm

$~$

Perimeter of new square = Perimeter of Bigger square - Perimeter of smaller square

⟹ 36 - 12

⟹ 24 cm

$~$

∴ Perimeter of new square formed is 24 cm.