Math Problem Help?

Question

Amy has a pen 17cm long that she wants to send as a gift to a friend. She finds a rectangular box in which the pen just fits. Both the length and the width of the box are 12 cm. What is the height of the box?

Answer 1

Favorite Answer

We know the pen is the hypotenuse of a triangle with base² = 12²+12² = 288

17² = 288+h²

h² = 17²-288 = (1cm)² so the box has height 1cm assuming the pen width can be ignored.