Question

Let the area of a square is 9 cm2. What would be the new area, if its side is
reduced by 1 cm?​

Answer 1

Answer:

⇒a^{2}=(3cm)^{2}a

2

=(3cm)

2

⇒ a = 3 c m

New side is reduced by 1 cm = 3 cm - 1 cm = 2 cm

∴ The new area of square=(2cm)^{2}=(2cm)

2

=4cm^{2}=4cm

2