Circles By Darude & Snoop Dug. Dis is a Circle How do you work out the area of a circle?

Slides:



Advertisements
Similar presentations
Angles in Circles Angles on the circumference Angles from a diameter
Advertisements

Using Radius to Find Circumference
10 – 6E CIRCLES. Important formulas when dealing with circles: Circumference = diameter multiplied by pi or 3.14 C = Circumference = 2 multiplied by the.
Circumference of a Circle Math 10-3 Ch.3 Measurement.
Unit 13 Areas Presentation 1Formula for Area Presentation 2Areas and Circumferences of Circles Presentation 3Formula for Areas of Trapeziums, Parallelograms.
CIRCUMFERENCE OF A CIRCLE LEARNING TARGET 4: I CAN SOLVE PROBLEMS USING AREA AND CIRCUMFERENCE OF A CIRCLE.
Equations of Circles.
Chapter 10 Lesson 1: Circles and Circumference Objective: Learn to find the circumference of circles.
Circles & Circumference Standard Math The circumference is the distance around a circle. Circumference Circumference is the perimeter of circles. Radius.
Circumference & Area of Circles Unit 5-3. Circumference Formula for Circumference: ** r is the radius ** ** 2r = d. d is the diameter. ** **Circumference.
1)Create a circle with a diameter of 6 cm. 2) Using a ruler, divide the circle into 8 congruent sectors. 3)Cut out the sectors and arrange them to form.
Circumference & Pi    3.14.
Brought to you by powerpointpros.com
6.7Circumference and Arc Length Theorem 6.19 The circumference C of a circle is C = ____ or C = _____, where d is the diameter of the circle and r is.
Circumference and Area of a Circle. Diameter Radius centre What is the formula relating the circumference to the diameter?
Circumference and area of circles Pick up your calculator for today’s notes.
1-5: USING FORMULAS IN GEOMETRY. PERIMETER & AREA RectangleSquareTriangle P = 2l + 2w or 2(l + w) A = lw P = 4s A = s 2 P = a + b + c A = ½ bh.
Mark Arcaro Geometry High School  After Today’s Lesson I Can… ◦ Identify the different parts of a circle. ◦ Solve for the circumference of a circle.
The circumference of the circle is 50  feet. The area of the shaded region = ________ example 1 :
Circumference of a Circle
Circumference & Area of a Circle
Circumference and Diameter 1/31/2006. Circumference A circle is a shape with all points the same distance from the center. It is named by the center.
Practice with Area, Perimeter and Circumference Sometimes we have to find area or perimeter of odd shapes. Find the area of the following shape. 15 m.
Terra Nova Practice Review of Lessons Problem 1 If you plot the following points on the grid below and connect them, what figure do you get?
Mrs. Planavsky 4 th Grade.  Find the circumference of a circle  Find the measurement of a diameter of the circle.
The Circle. The language of circles Circumference: The distance round the circle Circumference: The distance round the circle Diameter: the distance from.
Circumference Lesson #33. What is Circumference? The distance around the outside of a circle is called the circumference (essentially, it is the perimeter.
Circumferences & Areas of Circles. Circle information Defn: Points on a plane that are equidistant from a given point (CENTER). Radius: From center to.
CH. 8: GEOMETRY 8.1- PERIMETER AND CIRCUMFERENCE.
Circumference Review. Review What is the relationship between a radius and a diameter? What does a circumference measure? What formulas do we use to calculate.
Do now: Work out the circumferences and areas of these circles 10 cm 12 cm 9 cm 2 cm 1.5 cm.
Warm-up 8.5 Area of Circles and 8.1 to 8.4 Quiz. Answers to H.W. pg 443 #1-8.
Circles: Arc Length and Sector Area
Lesson E: Circumference of Circles Objective: To use formulas to find the circumference of circles.
Review:labeled part Write the name of each of the circle E. B. C. A. D.
Standard Form of a Circle Center is at (h, k) r is the radius of the circle.
AREA OF A CIRCLE Lesson Parts of a Circle Finding the Area Area means the amount of space covered. The symbol is called pi and is approximately.
Circles. diameter Circumference radius Circumference- the distance around the circle. About 3X the diameter.
EOC Practice Question of the Day. Graphing and Writing Equations of Circles.
Circles…… Area and Circumference The Circumference of a Circle Find the circumference of the following circles. C =  d C = 2  r 8 cm cm 2 C =
January 31st, 2013 Homework: Worksheet on area and circumference Do Now: 1. A circle has a diameter of 31 cm. What is the area of the circle? Round if.
Math – Multiplying Fractions, Mixed Numbers, and Rational Expressions 1.
10-8 Spheres Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz.
By Abigail Cope. Diameter Radius Diameter Radius To find the circumference using the diameter you multiply Pi (3.14) By the diameter.
CIRCLES CIRCUMFERENCE & AREA. CIRCUMFERENCE C = ΠdorC = 2Πr 12cm.
By: Kay McInnis. Diameter DIAMETER is the distance across a circle passing through the center point.
Circles Review 3 rd Grade Geometry. What is the diameter of a circle?
Parts of a circle The distance around circle O is called the circumference of the circle. It is similar to the perimeter of a polygon.
AREA OF A CIRCLE Learning Target 4: I can solve problems using area and circumference of a circle.
Recap: This circle has a diameter of 1. What is its circumference? 1.
Circles OCR Stage 6.
Perimeter, Circumference and Area. Perimeter and Circumference Perimeter : The distance around a geometric figure. Circumference: The distance around.
Finding Circumference for 4 th and 5 th Grade By Andrea Klee.
The midpoint of a circle is centre The line drawn from the centre to the circumference is … radius.
Perimeter and Area Formulas.  Perimeter is the distance around an object. It is easily the simplest formula. Simply add up all the sides of the shape,
Perimeter and Area with Circles. Circumference of a Circle Circumference is the perimeter of the circle Formula: or (for exact answers, leave π in your.
Opener Simplify or Solve: 1. x + 3(x – 6) 2. 4x + 5 = (3 + x)y + x² + 2xy 4. 6(x + 2) + 4x x + x – 6 = 3 6. –(x + 7) = -3.
Sections Perimeter and Area with Circles.
Do Now:. Circumference What is circumference? Circumference is the distance around a circle.
Prerequisite for chapter 10 Section Solving equations for a given variable Box in the letter you are solving for Leave that letter in its place.
Circles. Parts of a Circle Center The diameter is the distance across the circle through the center The radius is the distance to the center point.
It’s the same for all circles! The Circumference of a Circle.
Standard Form of a Circle Center is at (h, k) r is the radius of the circle.
Lesson 8.7 Concept: How to find the circumference of a circle. Guidelines: *The diameter of a circle extends from one side of the circle to the other.
Surface Area and Volume of a Sphere Essential Question: How to find the surface area and volume of a sphere? Sphere – set of all points in space equidistant.
Unit 6-1 Parts of Circles Circumference and Area of Circles.
March 8 th,  Problem 1) A) What is the formula for the area of a circle? B) What is the formula for the circumference of a circle? C) How do these.
Check your understanding!
CIRCLES:
Do you know what pi is?.
Presentation transcript:

Circles By Darude & Snoop Dug

Dis is a Circle

How do you work out the area of a circle?

That’s Right. A= π r2 In Detail. Area = x (radius x radius)

How do you work out the diameter?

That’s Right. You get a ruler and measure from one side to the other.

How do you work out the radius?

That’s Right. Divide the Diameter by 2.

How Do You Find Out The Diameter From The Radius?

That’s Right. Multiply the Radius by 2

How Do You Find Out The Circumference Of A Circle?

That’s Right. C = 2 π r. In Detail. C = 2 x x r

Well Done. You Have Finished.

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com. Inc. All rights reserved.