How do you measure diameter of circle
[DOC File]UNIT: Circles
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Measure the diameter and the circumference of the circle in each object to the nearest tenth of a centimeter. ... For example, using 3.1 as an approximation for π , if a circle has a diameter of 4 cm, then the circumference is about (3.1)⋅4=12.4 or 12.4 cm. The relationship between the circumference and the diameter can be written as. C ...
[DOC File]Round Things
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To do this part of the lesson, continue using the Bolt_Circle_1.gsp file you downloaded in the previous section (lesson Worksheet 1). DATA: 12 cm bolt circle diameter - 5 bolt pattern. STEP 1: Look at this diagram. The distance from the lug nut to the center of the circle is …
[DOC File]Lesson Worksheet 1
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What is the ratio between the central angle and the total angle measure of the circle? Justify. 3. How can you use the circumference of the circle and the ratio of the central angle to find the total measure of the circle to the length of the arc? Station 4 continued. 3. Copy the second circle with radius 2 inches. Mark points P, A and B.
[DOCX File]Discovering Pi: Circumference, Diameter, and Radius
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L, Line Up a Plan. Write in words what your plan of action will be. Multiply the radius times two, which is the length of the rope, to get the diameter. Find the circumference of the circle by multiplying the diameter of the circle times pi or use the formula for finding circumference, which is …
[DOCX File]Lesson 1 - Scottsbluff Public Schools
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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?) Do you think this is true for all circles? Exploring the Circumference: Diameter Relationship. Measure the circumference and diameter of circular (and spherical) items in your classroom. All ...
[DOCX File]Unit 3, Lesson 3: Exploring Circumference
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Circle A has area 500 in2. The diameter of circle B is three times the diameter of circle A. Estimate the area of circle B. Solution. About 4,500 in2. If the diameter is 3 times greater, the area must be 32, or 9 times greater. Problem 4 (from Unit 3, Lesson 5) Lin’s bike …
Chapter 9 Circles
Do you think there is a relationship between the diameter and the circumference of a circle? If so, express the general relationship in your own words. Describe how you will measure the circumference and diameter of the circular objects you will use in this experiment and construct a data table that contains the necessary columns.
[DOC File]CIRCUMFERENCE OF A CIRCLE
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6) Congruent arcs – arcs in the same circle or congruent circles that have equal measures (or the same measure for their central angles). Example 3: Arcs and Chords. Warm up – In the circle below, AB = 10 and BC = 10…What do you think will be true of the two arcs, AB and BC? Theorem 9-4. In the same circle or in congruent circles: 2 ...
[DOC File]Class discussion / debrief
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Be sure you are looking at the cm/mm side of the ruler! Adjust the slide so that the edge of one mark is at the left side of the field of view and the ruler is at the “equator” of your field of view (the illustration above isn’t quite lined up correctly). You want the measurement of the diameter of the circle!
How to Determine the Diameter of a Circle | Sciencing
Measure its diameter and its circumference and record your results. Create a circle of different size, measure its diameter and circumference, and record your results. Repeat this process several more times. Use the data and a calculator to investigate the relationship between the diameter and circumference of a circle.
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