Question

A wire is first bent into the shape of a rectangle with width 4cm and length 5cm. 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

What is the total length of wire used for the rectangle?

Answer 2

18?

Answer 3

The perimeter of the rectangle would add up to 18, and so if you divide the triangle's three sides evenly, you would end up with six cm on each side.

Answer 4

Thank you!