Question

You need to buy enough boards to make the frame of the triangular sandbox shown. If one board is 3 feet long, how many boards do you need to buy?

triangle sides that's marked are marked 17ft, 13ft, and 8.5 ft

13
38.5
12
19

Answer 1

13 boards.

Explanation:

1st, sume the sides of the triangle.

17 + 13 + 8.5 = 38.5ft

If one board is 3ft long, then 38.5ft/3ft=12.83≈ 13 boards!