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Published byCarmel Hunt
Modified over 5 years ago
Mrs. Planavsky 4 th Grade
Find the circumference of a circle Find the measurement of a diameter of the circle
The circumference of a circle is the distance around the circle.
If you know the diameter of a circle, you can estimate its circumference! You can find the EXACT measurement of the circumference of a circle by multiplying the diameter and pi (3.14).
A diameter is a chord that passes through the center of a circle.
CircleDiameterEstimated Circumference A2 cm B4 cm C7 cm D8 cm
How do you know?
How do you know?
How did you figure this one out? What new information did you learn about finding the circumference?
Half of the diameter is called the radius So, 2 x radius= diameter
Angles in Circles Angles on the circumference Angles from a diameter
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The outside of the circle is called circumference The circumference is the distance around the circle.
3.4 Area and Circumference 1 Circle A circle is a plane figure that consists of all points that lie the same distance from a fixed point. The fixed point.
investigate the relationship between the diameter and circumference of a circle.
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Circles and Circumference. Vocabulary A circle is a plane figure that consists of a set of points that are equidistant from a given point called the center.
A Circle is a closed plane figure in which all the points are the same distance from the center. F Center Circle F.
Extension #4A Geometry Math Vocabulary- Circles Assessment Anchor M5.B PA Academic Standard 2.9.5C Aligning with Pennsylvania Department of Education Assessment.
- Segment or distance from center to circle. Objective - To find the circumference of a circle. Circle - The set of points that are equidistant from a.
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