P – M – OE15

The lengths of a five-sided shape are all different. If the perimeter is an even number, what could the side lengths be?

P – M – OE16

The lengths of a five-sided shape are all different. If the perimeter is an odd number, what could the side lengths be?

P – M – OE17

A five-sided shape had three sides with the same length and two sides with different lengths. What could the lengths for each side be? What is the perimeter?

P – M – RT1

My ruler was broken. When I lined the ruler up next to a book cover, I saw 24 cm next to the bottom of the book cover. What could the length of the book be? What number was next to the top of the book cover?

P – M – OE3

Draw three line-segments. Two of the line-segments are close in measurement while the third is much shorter. What is the length of each line?

Subscribe To Our Newsletter

Join our mailing list to receive the latest news and updates from Dr. David Costello.

You have successfully subscribed!