Logic puzzle Lessons 39 and 40 worktime

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Presentation transcript:

Logic puzzle Lessons 39 and 40 worktime Agenda Logic puzzle Lessons 39 and 40 worktime

Lesson 39: circumference of a circle Bonus Pi Video!!! Pi (π ):

Circumference of a circle C = πd or C = 2πr π ≈ 3.14 π ≈ 𝟐𝟐 𝟕

The radius of a car wheel is 7 inches The radius of a car wheel is 7 inches. About how far does the wheel roll in one turn? (use 𝟐𝟐 𝟕 for π)

Lesson 40: area of a circle

A circular table in the library has a diameter of 8 feet A circular table in the library has a diameter of 8 feet. If 6 students sit around the table, then each student has about how many square feet of work area?

Sector: a portion of the interior of a circle

Find the area of the sector. Express in terms of π