Question

area of a square field is 2 hactare. find the length of its diagonal

Answer 1

Note:1hectare = $10000m^{2}$
Hence 2 hectare = $20000m^{2}$

Area of square = side × side

Side×side = 20000

side^{2} = 20000

side = √20000

side = 141.42135623m

By PYTHAGORAS theorem

$141.42135623^{2}+141.42135623^{2}=diagonal^{2}$

20000+20000= $diagonal^{2}$

√40000= diagonal

diagonal =200m