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Area and Circumference of Circles
1. Radius- any line segment that connects the center to a point on the circle VOCABULARY Radius
2. Diameter- any line segment that passes through the center of the circle and connects two points on the circle. The diameter is twice the length of the radius.
3. Circumference is the word used to describe the distance around the outside of a circle.
A=π r 2 Formulas C= 2πr Or C= πd
What is pi? Pi is the ratio of the circumference of the circle to its diameter. π
Pi is an infinite decimal. Lets take a look….. The first 500 digits of pi.
Practice Problems 1. A hot tub has a diameter of 6 feet. What is the circumference and area of the hot tub?
Practice Problems 2. The circumference of your CD is 28.26 cm. What is the radius?
Practice Problems 3. The radius of a circular rug is 4 ft. What is the circumference and area of the rug?
C=π d C=2πr r=½d d=rx2 A=πr² The diameter is the longest chord. The ratio of the circumference is always …. π is a Greek letter. π can also.
Circles Yes I know we did this yesterday. Circumference Posh name for the perimeter of a circle Measured in normal units of length cm etc. But how do.
Objective: Find the circumference and area of circles.
10.1 Circles and Circumference
10-1 Circles and Circumference. A circle is the set of all points in a plane that are the same distance from a given point, called the center. Center.
M5G2 – Students will understand the relationship of the circumference of a circle, its diameter, and pi (pi ≈ 3.14)
Circles. A circle is a shape with all points the same distance from its center. The distance around a circle is called its circumference. The distance.
Circles 9.3 Page 532 DiameterIs a segment that passes through the center of the circle and has endpoints on the circle. Segment AC is the diameter. D =
Circles Learn to find the area and circumference of circles.
Radius, Diameter, and Circumference of a Circle Lesson 7 (3 rd 6 Weeks) TEKS 6.6C.
Targeting Grade C SSM 3 Circles GCSE Mathematics.
Circles & Circumference 8 th Grade Pre-Algebra Circles & Circumference PPT Molly Thompson.
1. 2 Circle A circle is the set of all points that are the same distance from a given point called the center.
Ms. Cuervo CAHSEE Prep CIRCUMFERENCE. Circumference 7MG 1.2 Students will use pi to find the circumference and diameter of circles. VOCABULARY Circumference:
Circles: Area and Circumference. Definitions Circumference: Distance around the outside of a circle Area: How many squares it takes to cover a circle.
The outside of the circle is called circumference The circumference is the distance around the circle.
GEOMETRYGEOMETRY Circle Terminology. Student Expectation 6 th Grade: 6.3.6C Describe the relationship between radius, diameter, and circumference of a.
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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