SOLUTION: I need to find the total surface area of a metal washer that is 2.53 cm in diameter, 0.08cm high and the hole that is drilled out in the center measured 0.32cm in diameter.Can you
Algebra.Com
Question 214402: I need to find the total surface area of a metal washer that is 2.53 cm in diameter, 0.08cm high and the hole that is drilled out in the center measured 0.32cm in diameter.Can you help with the equation?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
need to find the total surface area of a metal washer that is 2.53 cm in diameter, 0.08cm high and the hole that is drilled out in the center measured 0.32cm in diameter
------------------------------
Top = [(pi)(2.53/2)^2 - pi(0.32/2)^2 ] cm^2
---
The bottom area is the same as the top so double the top area.
--------------------
Outer side Area?
sa = (circumference)*(height)
sa = 2(pi)2.53 * 0.08
----
Inner side Area?
= 2(pi)0.32*0.08
===============================
Add top + bottom + outside + inside to get Total surface area
================================
Cheers,
Stan H.
RELATED QUESTIONS
Please help me solve this problem in Geometry.
A metal washer 4 cm in diameter is... (answered by stanbon)
I'm having trouble setting up the equation or even identifying the geometric formula for... (answered by Cromlix)
a hole with a diameter of 3.5 cm is drilled through a square metal nut of thickness 4 cm... (answered by greenestamps)
A rectangular hole 3 cm wide and x cm long is cut in a rectangular sheet of metal that is (answered by ankor@dixie-net.com)
a metal pipe is 77 cm. long the inner diameter of a cross section is 4 cm. the outer... (answered by Fombitz)
A rectangular hole 3cm wide and x cm long is cut in a rectangular sheet of metal that is... (answered by rothauserc)
A metal pipe is 77 cm long, the inner diameter of the cross-section is 4cm and the outer... (answered by Alan3354)
Calculate the area of a circular washer of diameter 3.42cm if the hole in the center is... (answered by Alan3354)
1.) A garden plot is to contain 240 sq.ft. If its length is to be three times its width,... (answered by robertb)