Curriculum Resources
Take learning to the next level and transform the way you teach with a vast library of ready-to-use, standards-aligned, adaptable curriculum resources. The resources listed below are either available with an Online Learning Subscription which allows you to instruct, assess and track student performance or as individual hands-on classroom resources which can be purchased. Choose from Multimedia Lessons, Curriculum Mastery Games, Flip Charts, Visual Learning Guides, Flash Cards, Vocabulary Cards, and Curriculum Modules available on our online store. PREMIUM ONLINE LEARNING SUBSCRIPTION OPTIONS
  • Select By Standard
  • BROWSE CURRICULUM
    • General Science
    • Life Science / Biology
    • Human Body
    • Earth Science
    • Physical Science
    • Chemistry
    • Math
    • Language Arts
    • Social Studies
 

Back
FREE Trial to
Online Learning
Shop for printed
Flip Charts

Area & Circumference of Circles

Mathematics, Grade 6

 
1
/
2
C = d or 2 r C = r 2 Area of a Circle Circumference of a Circle A E AB is a diameter AD, DB, and DC are radii EF is a cord B D C F center diameter circle D circumference radius chord A circle is a plane figure formed by a set of points that are equal distance from a fixed point within it, called the center. The diameter of a circle is the distance across the inside of a circle through the center. It is twice the measure of a radius. The radius is half the measure of a diameter. It is a line segment with one end point at the center of the circle and the other endpoint on the edge of the circle. The circumference of a circle is the distance around it. A chord is a line segment that connects any two points on a circle. The area of a circle is the space contained within the circumference. The ratio of the circumference of a circle to the diameter of a circle is approximately equal to 3.14 or . This ratio is called Pi ( ) and is the same for all circles. 22 7 d = 12 in. ; A = ? d = 12 A = r 2 A 3.14 (6) 2 A 3.14 36 A 113.04 in.2 C = 2 r C 2 3.14 5 C 31.4 ft r = 6 r = r = 5 ft ; C = ? d 2 r = 12 2 12 in. 5 ft C = d C 3.14 10 C 31.4 ft d = 10 ft ; C = ? © Copyright NewPath Learning. All Rights Reserved. 93-4610 www.newpathlearning.com Area & Circumference of Circles
\|xiBAHBDy01665mzV C = d or 2 r C = r 2 Area of a Circle Circumference of a Circle A E AB is a diameter AD, DB, and DC are radii EF is a cord B D C F circle D A circle is a formed by a set of points that are equal distance from a fixed point within it, called the . The of a circle is the distance across the inside of a circle through the . It is twice the measure of a . The is half the measure of a . It is a line segment with one end point at the center of the circle and the other endpoint on the edge of the circle. The of a circle is the distance around it. A is a line segment that connects any two points on a circle. The of a circle is the space contained within the circumference. The ratio of the circumference of a circle to the diameter of a circle is approximately equal to or . This ratio is called and is the same for all circles. d = 12 in. ; A = ? d = 12 A = r 2 A 3.14 ( 6 ) 2 A 3.14 36 A 113.04 in2 C = 2 r C 2 3.14 5 C 31.4 ft. r = 6 r = r = 5 ft ; C = ? r = 12 in. 5 ft C = d C 3.14 10 C 31.4 ft. d = 10 ft ; C = ? Key Vocabulary Terms area center chord circle circumference diameter pi ( ) plane figure radius © Copyright NewPath Learning. All Rights Reserved. 93-4610 www.newpathlearning.com Area & Circumference of Circles
© Copyright 2012-2018 NewPath Learning. All Rights Reserved. Privacy Notice * Terms of Use