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| Answer» N 1:The diagonal of a square is 5√2 m. Find its area and perimeter.★ Formulae to be Used:→ → → ★ Solution:Diagonal of the square = 5√2.We know that the diagonal of a square = √2 x sideSo, Side of the GIVEN square = 5 x √2= 5 mArea of a square = a²= 5²= 5 x 5= 25 m²Perimeter of a square = 4a= 4 x 5= 20 m★ Final Answers:Area of the square = 25 m²Perimeter of the square = 20 mQuestion 2:The diagonal of a square is 12 CM LONG. Find its area and perimeter.★ Formulae to be Used:→ → → ★ Solution:Diagonal of the square = 12 mArea of a square = 1/2 x d²Area = 72 cm²Side of a square = √Area→ As we cannot find the root directly, we MUST find the factors of 72.→ Taking out the common factors:→ Taking the value of √2 as 1.41:Perimeter of a square = 4a= 4 x 8.46= 33.84 cm★ Final Answers:Area of the square = 72 cm²Perimeter of the square = 33.84 cm | |