Homework Help: Math Help Please

Posted by Andrew on Thursday, February 22, 2007 at 7:46pm.

The concentric circles, or growth rings, represent the cross-section of a tree with a diameter of 16 centimeters. The width of the outer tree ring measures 2 centimeters. What is the area in square centimeters of the outer ring of the cross-section of the tree? Use 3.14 for p.i.

pi [(8^2) - (7.8)^2]

8 cm is the radius of the outside of the outer ring, and 7.8 is the radius of the inside of that ring.

I have neglected the bark of the tree when considering the radius of the outer ring to equal (tree diameter)/2

No one has answered this question yet.

Answer this Question

Related Questions

Math Help Please - The concentric circles, or growth rings, represent the cross-...
Math - Early in his career, Andrew Ellicott Douglass (1867-1962) noticed a ...
Math - The following table represents the diameter of the cross section of a ...
Math - The following table represents the diameter of the cross section of a ...
Math - This question is based on a project- Describe three concentric circles ...
Math - Garden Area Problem. A designer created a garden from two concentric ...
Physics - The drawing shows a cross section of a plano-concave lens resting on a...
ALGEBRA - The GARDEN AREA PROBLEM: A designer created a garden from two ...
math - Each year a growing tree adds a new ring to its section some years the ...
Math - When the waiter was asked to slice the 16-inch (in diameter) pizza into ...

For Further Reading

First Name:
School Subject:
Answer: