Question

The perimeter of a rectangle is 10 metre and its area is 5¼ sq metre . What are the length of its sides ?

Answer 1

Answer:

Using the formulas

A=wl

P=2(l+w)

There are 2 solutions for ll=P 4+1 4P2﹣16A=10 4+1

4·102﹣16·5≈3.61803ml=P

4﹣1

4P2﹣16A=10

4﹣1

4·102﹣16·5≈1.38197mlength = 3.62 m or 1.38m