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**Area, Circumference & Volume**

Performance Indicator 9 Area, Circumference & Volume Objective: TLW a) Apply the given formula to find the area of a circle, the circumference of a circle, or the volume of a rectangular solid.

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**Radius & Diameter Radius (r): the line HALFWAY through the circle**

Radius & Diameter Radius (r): the line HALFWAY through the circle Diameter (d): the line to the END of the circle radius diameter

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**Radius & Diameter 6 ¼ cm 5 ft. 3.2 m r =_____ d= ____ r =_____ d= ____**

2 ¼ in 6 ¼ cm r =_____ d= ____ r =_____ d= ____

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**AREA diameter CIRCUMFERENCE (C) : the measurement AROUND the circle.**

CIRCUMFERENCE (C) : the measurement AROUND the circle. C = d C i r c u m f e n diameter AREA (A): the measurement INSIDE the circle. A = r² AREA radius

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**Area & Circumference 9 ¾ cm 6.5 m 18 ft. r =____ d =_____ C= ____**

4 ½ in 9 ¾ cm r =____ d =_____ C= ____ A= ____ r =____ d =_____ C= ____ A= ____

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**Area & Circumference r =____ d =__5cm__ C= ____ A= ____ r =____**

d =_4.2ft__ C= ____ A= ____ r =_6.8in___ d =_____ C= ____ A= ____ r =_10m___ d =_____ C= ____ A= ____

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**Area & Circumference AREA diameter radius Around a circle**

Inside a circle Line halfway through a circle Line to the end of the circle C i r c u m f e n diameter

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**Volume The AMOUNT of SPACE that an object takes up. V = L ∙ W ∙ H**

3.6 ft 2.2 m 9 ft 6 in 7.3 m 7 in 16 in 1.6 m 2 ½ ft V = ____ in³ V = ____ m³ V = ____ ft³ The AMOUNT of SPACE that an object takes up. V = L ∙ W ∙ H V = Length ∙ Width ∙ Height

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