Question

Find the side and perimeter of a square whose diagonal is 10 cm.​

Answer 1

diagonal of square with side 'a' = √2 a

10 =√2 a

by solving it

a. = 5√2

perimeter= 4a

perimeter= 4* 5√2

perimeter=20√2

Answer 2

Solve for side

a≈7.07

d Diagonal

10

Unit Conversion:

Using the formula

d=2a

Solving for a

a=2d

2=2·10

2≈7.07107

Solve for perimeter

P=28.28

a Side

7.07

Unit Conversion:

Solution

P=4a=4·7.07=28.28