Ask Question
21 March, 08:32

A manufacturer of metal washers needs to determine the cross-sectional area of each washer. If the outer radius of the washer is R and the radius of the hole is r, express the area of the washer as a polynomial. Factor this polynomial completely.

+3
Answers (1)
  1. 21 March, 08:37
    0
    The formula for area of any circle is : πr2.

    To find the area of the washer, subtract the area of the hole from the area of the outer circle:

    A = πR2 - πr2

    A = π (R2 - r2)

    Now factor completely:

    A = π (R + r) (R - r)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A manufacturer of metal washers needs to determine the cross-sectional area of each washer. If the outer radius of the washer is R and the ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers