Question

A field in form of parrallelogram has sides 60cm 25cm and one of its diagonals is 65 m long find area of field

Answer 1

by herons formula,
s=(1/2)(a+b+c)
s=(40+60+80)/2
s=90
area of //gm =2Xsqrt(90(90-60)(90-40)(80-80))
=2X300 sqrt(15)
=600 sqrt(15) m^2