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1. A = tr² if r = 2 2. C = 2är if r = 2 3. C = nd if d = 4

1. A = tr² if r = 2 2. C = 2är if r = 2 3. C = nd if d = 4

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.8: Rate-time-distance Problems
Problem 20P
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Evaluate A (area of a circle) and C(circumference of a circle for the given values
of r and d. Avoid decimal operations!

1. A = Ttr? if r = 2 Reminder: C= 2πr ifr=2 A == 2. 1 C = nd if d = 4 T × 3.14 3. 4. A = tr² if r = 4 Ex: 5. c= 2πr if r= 4 Find A = tr? if r = 3 A = tr² 6. C = Td if d = 8 A = T(r)? 7. A = ar² if r = 6 A = 3.14(3)2 A = 3.14x9 8. C = 2tr if r = 6 314.9 A = 100 *T 9. C = Td if d = 12 314x9 A = 100x1 A = tr² if r = 0.2 2826 100 10. Page 5 I 5 A = 28.26
Transcribed Image Text:1. A = Ttr? if r = 2 Reminder: C= 2πr ifr=2 A == 2. 1 C = nd if d = 4 T × 3.14 3. 4. A = tr² if r = 4 Ex: 5. c= 2πr if r= 4 Find A = tr? if r = 3 A = tr² 6. C = Td if d = 8 A = T(r)? 7. A = ar² if r = 6 A = 3.14(3)2 A = 3.14x9 8. C = 2tr if r = 6 314.9 A = 100 *T 9. C = Td if d = 12 314x9 A = 100x1 A = tr² if r = 0.2 2826 100 10. Page 5 I 5 A = 28.26
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