Question

find perimeter of a square. If its
daigonal is
7 √2cm.
A 28 √2cm B) 28cm
c] 28 √8 cm d) 14 cm ​

Answer 1

$\huge \fbox \red{❥Answer}$

Perimeter of Square = 4 × side

= 4 × 7√2

= 28√2

So, option (A) is correct.

Answer 2

Step-by-step explanation:

A.

diagonal of the square = side×√2

28 √2 = side ×✓2

side = 28cm

then,

perimeter of square is 4 × side

=4 × 28

112cm

B.

diagonal of the square = side×√2

28 = side ×✓2

side = 28/√2

= 14✓2cm

then,

perimeter of square is 4 × side

=4 × 14√2

56√2cm

C.

diagonal of the square = side×√2

28 √8 = side ×✓2

side = 28√8/√2cm

=28√4cm

then,

perimeter of square is 4 × side

=4 × 28√4

112√4cm

D.

diagonal of the square = side×√2

14 = side ×✓2

side = 14/√2

= 7✓2cm

then,

perimeter of square is 4 × side

=4 × 7√2

28√2cm