Question

Jon has a wing span of 5’6’’ and Jim has a wingspan of 6’. What is the largest diameter of tree they wrap their arms around and still touch their fingers?

Answer 1

Answer: 3 ft 8 in

Explanation:

The sum of their wingspan is the circumference of the tree.

Use the formula: C = πd to find the diameter (d) of the tree.

5'6" + 6' = 11'6" = 11.5 ft

11.5 ft = πd → 11.5/π = d → 3.66 ft = d

Next, convert the decimal (feet) into inches

`(66)/(100) =(x)/(12)\\\\66(12)=100x\\\\792= 100x\\\\(792)/(100)=x\\\\7.92 = x\\\\`

which means the decimal of .66 ft rounds to 8 in

⇒ d = 3 feet 8 inches (3' 8")