Question

EX = 11.33
Q1
d . in a square , area =81 cm sq , side = ?, perimetere =?

Answer 1

Answer:

Area of square = a^2

81 = a^2

a =√81

side = 9cm

perimeter = 4a

                 = 4*9

                = 36 cm

Answer 2

Given

Area = 81 CM

Find

side = ?

perimeter =?

According to question

Area of square = side × side

81 cm² = (side) ²

side = √81 cm²

side = 9 cm

Perimeter =?

side = 9 cm

Perimeter of square = 4 × side

Perimeter of square = ( 4 × 9 ) cm

= 36 CM

side = 9 CM Perimeter= 36 CM

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