Presentation on theme: "8.5 Areas of Circles. What is ? Investigation: A Taste of p 332 = 3.14159265….. If C is the circumference and d is the diameter of a circle, then."— Presentation transcript:
What is ? Investigation: A Taste of p 332 = 3.14159265….. If C is the circumference and d is the diameter of a circle, then there is a number such that C = _______. If d = 2r, where r is the radius, then C = _______. dd 2r2r
Area Investigation: Area Formula for Circles p 433 The area of a circle is given by the formula _______, where A is the area and r is the radius of the circle. A = r 2
8.6 Any Way You Slice It Cut my pie into four pieces – I don’t think I could eat eight. YOGI BERRA
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