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[DOC File]The radius, diameter, circumference, and area of a circle
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Feb 14, 2012 · a) The circumference of a circle with a diameter of 15 cm. b) The radius of a circle with a diameter of 480 in. c) The circumference of a circle with a radius of 320 cm. d) The diameter of a circle with a radius of 522 ft. The radius, diameter, or circumference of a circle is given. Find the missing measures. Show your work
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[DOC File]UNIT: Circles
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Prove that if a radius of a circle passes through the midpoint of a chord, then it is perpendicular to that chord. Discuss your proof. G.G.49b. Using dynamic geometry, draw a circle and its diameter. Through an arbitrary point on the diameter (not the center of the circle) construct a chord perpendicular to the diameter.
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[DOC File]Topic: Measurement
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Therefore, if the radius is given, the diameter will be calculated by multiplying the radius by 2. If the diameter is given, the radius will be calculated by dividing the diameter by 2. For example, if a circle has a radius of 4 cm, the diameter will be 8 cm (4 x 2 = 8). If the diameter …
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[DOC File]Unit 4: Circles and Area
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Area of a Circle = π × r × r . and r = radius. Area = π r 2 * Since its area the units are still squared. Examples: 1. Find the area of each circle. Round answers to the nearest tenth…one decimal place. a). Area = π × r × r. 5 cm b). diameter = Area = π × r × r. 8.4 m radius =
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[DOC File]Comparing and Contrasting Area and Circumference of Circles
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Select the center and point on the circle. Go to Measure and select Distance. Select the circle. Go to Measure and select Area. Select the circle. Go to Measure and select Circumference. Drag the point on the circle to increase or decrease the radius of the circle. Create a table with two columns, recording the radius, area. Collect six pairs of values.
area of circle with dia

[DOC File]Geometry 2-B
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23. Find the approximate circumference of a circle with . diameter = 10cm 24. Find the approximate circumference of a circle with . radius = 5cm 25. Find the exact circumference of a circle with . radius = 3cm. 26. Find the exact circumference of a circle with . diameter = 12cm. 27. State the . FORMULA. for finding ARC LENGTH: Use the formula ...
diameter of circle calculator from area

Area of a circle using diameter