Question

$\huge{\color{magenta}{\fbox{\textsf{\textbf{VERIFIED 亗}}}}}$ 1. The perimeter of a rhombus is 20 cm and one of its diagonal is 6 cm long . Find the length of other diagonal .​

Answer 1

Answer:

The perimeter of the rhombus is 20 cm. Hence each side is 20/4 = 5 cm.

One diagonal being 6 cm, half its length = 6/2 = 3 cm.

The half of the other diagonal is [5^2–3^2]^0.5 = 4 cm

So the second diagonal is 8 cm long.