A lumberjack wishes to drive a spike through the center of a tree with a circumference of 43.96 feet. What’s the minimum length of the spike needed to go completely through the tree, passing through the center?

A lumberjack wishes to drive a spike through the center of a tree with a circumference of 43.96 feet. What’s the minimum length of the spike needed to go completely through the tree, passing through the center?

Detailed Explanation

The minimum length of spike is equal to the diameter of the tree. To find the diameter of the tree, use the formula, C = πd, where C = 43.96, and π = 3.14. 43.96 = 3.14 × d. d = 43.96 ÷ 3.14. d = 14. (remember pi=3.14)