Wednesday March 16 Blog
Parts of a Circle :- Radius
- Diameter
- Center
- Circumference : The distance around a circle, usually presented as a C.
This is a linear measurement :
Pi : is the ratio of the circumference of a circle to its diameter.
Pi = C/D, where C = circumference and D = diameter
Pi is approximately 3.14
Formulas:
Pi = C/D
C = Pi x D
D = C/Pi
D = 2(r)
Questions:
Find the circumference of each circle. Use the formulas above to answer the question.
1. C = Pi x D
= 3.14 x 40
= 125.6 mm
2. C = Pi x 2(r)
= 3.14 x 2(16.8)
= 3.14 x 33.6
= 105.504 cm
3. C = Pi x D
= 3.14 x 12.6
= 39.6 m
4. C = Pi x 2(r)
= 3.14 x 2(32.6)
= 3.14 x 65.2
= 204.728 m
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ReplyDeleteThis comment has been removed by the author.
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ReplyDeleteNs post but next time you should add a video
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