The Origin of Pi

What is π?

• The ratio of area divided by radius.

• The ratio of circumference divided by diameter.

• The ratio of circumference divided by the square of the radius.

• The ratio of area divided by diameter.

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CCSS.7.G.B.4

What type of number is π?

• Irrational Number

• Rational Number

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CCSS.8.NS.A.1

When the concept of π is firstly known to exist?

• 2000 years ago.

• 3000 years ago.

• 4000 years ago.

• 5000 years ago.

In what year mathematicians began using the greek letter of π?

• 1706

• 1737

• 1400

• 4000 B.C.

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CCSS.HSG.GMD.A.1

Leonhard Euler introduced the greek letter π to be used in mathematics.

• True

• False

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CCSS.HSG.GMD.A.1

Which one is the first 10 decimal numbers of π?

• 3.1415926545

• 3.1415826535

• 3.1415926435

• 3.1415926535

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CCSS.8.NS.A.2

Which equation is correct to find the length of a?

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CCSS.HSG.CO.C.9

Which equation is correct to find the length of b?

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CCSS.HSG.C.A.2

Which equation is correct to find the length of S2?

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CCSS.HSG.C.A.2

In where decimal position does 31415926535 pattern occurs again?

• The 176450 number until the 176455 number

• The 176451 number until the 176456 number

• The 176452 number until the 176457 number

• The 176453 number until the 176458 number

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CCSS.7.NS.A.2D

CCSS.8.NS.A.1