Question

The perimeter of a square is 28cm. Find the area and the length of its diagonal.​

Answer 1

Answer:

49 is the area and the diagonal is root over 98.

Step-by-step explanation:

Answer 2

Answer:

Area of square = 49 cm ^2

Diagonal of square is 7√2 cm.

Step-by-step explanation:

let the side of square be a cm.

According to the question

Perimeter of square = 28 cm

4a = 28 cm

a = 28cm/4

a = 7 cm

Side of square is 7cm

Area of square = (side)^2

Area of square = (a)^2

Area of square = (7cm)^2

Area of square = 49 cm ^2

Diagonal of squre = √2 × (side)

Diagonal of squre = √2 × 7 cm

Diagonal of squre = 7√2 cm

So,

Area of square is 49 cm^2.

Diagonal of square is 7√2 cm.