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bulgar [2K]
3 years ago
12

Question 3 (10 points)

Mathematics
1 answer:
tekilochka [14]3 years ago
5 0

Step-by-step explanation:

<h3>Part A</h3>

<u>Circumference formula:</u>

  • C = 2πr = πd

<u>Find π:</u>

  • 25.12 = 8π ⇒  π = 25.12/8 ⇒ π = 3.14
  • 9.42 = 3π ⇒ π = 9.42/3 ⇒ π = 3.14
<h3>Part B</h3>

<u>Area formula:</u>

  • A = πr² = πd²/4

<u>Find π:</u>

  • 50.24 = π*8²/4 ⇒ 50.24 = 16π ⇒ π = 50.24/16 ⇒ π = 3.14
  • 7.065 = π*3²/4 ⇒ 7.065 = 9π/4 ⇒ π = 4*7.065/9 ⇒ π = 3.14
<h3>Part C</h3>
  • The value of π is same - 3.14 from each case we have
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