Question

A wire is first bent into the shape of a rectangle with width 4 cm and length 5 cm. Then the wire is unbent and reshaped into a triangle. If each side of the triangle has equal length, what is this length?

Answer 1

Answer: 6

Explanation:

The perimeter of the rectangle is
`2(4+5)=18`.

Thus, each side of the triangle is
`18/3=6`.