Diameter and radius of a circle
[DOC File]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.
[DOCX File]Discovering Pi: Circumference, Diameter, and Radius
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Finally, have students write comparisons of the following: a) diameter and chord; b) diameter and radius; c) radius and circumference; and d) diameter and circumference. Comparisons should include: A diameter is a special chord that crosses from a point on the circle through the center of the circle to another point on the circle.
[DOC File]Circumference, Radius, and Diameter
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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. Radius Diameter ...
[DOCX File]5-10 geometry - human circle
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The radius of a circle is 12 inches. What is the diameter of this circle? Example 2. The diameter of a circle is 20x. What is the radius of this circle? Example 3. Which of these can be a line? a.) chord b.) center c.) tangent d.) radius e.) diameter. When a radius and a tangent meet… They meet at a 90 degree angle. Example 4
[DOC File]UNIT: Circles
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Since the diameter = 2 × radius, we can also use the following equation to find circumference: C = π × 2r or C = 2 π r. Circumference, radius and diameter of a circle are all distance measurements. Therefore, the units are cm, mm, m, km, etc. Examples: 1. A toonie has a radius of 1.4 cm. a). Find the diameter Answer: d = 2 × r
[DOC File]TEKS Lesson Plan/Unit Plan
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What does the radius of a circle measure? Highlight the following in different colors: Circumference. Diameter. Radius. What is the relationship between the diameter and the radius? Hypothesis: What do you think is the relationship between the circumference and the diameter? (i.e., How many times larger is the circumference than the diameter?)
[DOC File]The radius, diameter, circumference, and area of a circle
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A radius is a line segment with one endpoint at the center of a circle and the other endpoint on the circle. Diameter. A diameter is a line segment through the center of a circle, with endpoints on the circle. Circumference. Circumference is the distance around a circle. I. Sequence of Activities (Instructional Strategies) A. Focus/connections
[DOC File]Unit 4: Circles and Area
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Radius = _____ Radius = _____ Radius = _____ Radius = _____ 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.
Radius Of A Circle Formula: How To Find The Radius Of A Circle?
The diameter of a circle is 4.8 yd. Calculate its circumference. 2a. C = 6 in Calculate the diameter of the circle. 2b. The radius of a circle is 5.9 m. Calculate its circumference. 3a. The circumference of a circle is 9.7 in. Calculate its diameter. 3b. The circumference of a circle is 2.8 in. Calculate its radius. 4a. The circumference of a ...
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