Question

The length of the diagonals of a rhombus are 20cm and 48cm. find the perimeter of the rhombus.

Answer 1

Area of rhombus =d₁*d₂/2

d₁=42cm,d₂=25cm

Area=42*25/2=21*25 cm²=525cm²

diagonals of rhombus bisect at right angle . Therefore each side =√{(25/2)²+21²}cm

=√{(12.5)²+441}cm

=√(156.25+441)cm

=√597.25 cm

=24.43 cm

Perimeter of rhombus =4(24.43)=97.75 cm\