Question

Each side of a rhombus is 61cm and one diagonal is 22cm .Find the length of the other diagnol and area of the rhombus.

Answer 1

suppose the diagonal is 2x cm
so, x*x+11*11=61*61
or,x*x=61*61-11*11=(61+11)(61-11)=72*50=3600
so,x=60

so,the other diagonal is of, 60*2=120 cm
and the area= 1/2* 120*22=1320 cm* cm