Question

Fiand the area of a rhombus whose perimeter is 60cm and one diagonal is of length 18cm

Answer 1

One diagonal = 18cm

Let other =x

Area of rhombus = 60 cm

Area = 1/2*d1*d2

60=1/2*18*x

60*2=18x

120/18=x

Answer 2

one diagonal=18cm

let other=x

area of rhombus=60cm

area=1/2 d1 d2

60=1/2 ×18×x

60=1/2×18×x

60=9×x

x=60/9

x=10