Question

1. Side of a square is 4 cm. Length of its diagonal is​

Answer 1

4
`√(2)`

Explanation:

`4^(2) + 4^(2) = 32\\ so √(32)`
`√(32) = 4√(2\\)`

Answer 2

5.64

Explanation:

To find the radius of a square, cut in half 4/2 = 2. Then square it 2x2 = 4. Then double it to get 8. Then find square root, 2.82. Then double again for full length of diagonal.