Question

The diagonal of a rhimbus are 8cm and 6cm respectively.find its perimeter.

Answer 1

suppose a rhombus ABCD and its centre is O diagonal of rhombus is 8cm and 6 cm
half of the diagonal is 4cm and 3cm
By pythagoras thereom
AB =√AO^2+ BO^2
AB =√ 4^2+3^2
AB= √16+9
AB=√25
AB=5cm
side of rhombus is 5cm
perimeter of rhombus is 4*AB
=4*5cm
20cm