Changes
From Karnataka Open Educational Resources
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, 16:24, 3 November 2013
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| ===Notes for teachers=== | | ===Notes for teachers=== |
| The circumference of a circle relates to one of the most important mathematical constants in all of mathematics. This constant pi, is represented by the Greek letter П. The numerical value of π is 3.14159 26535 89793 , and is defined by the ratio of a circle's circumference to its diameter. | | The circumference of a circle relates to one of the most important mathematical constants in all of mathematics. This constant pi, is represented by the Greek letter П. The numerical value of π is 3.14159 26535 89793 , and is defined by the ratio of a circle's circumference to its diameter. |
− | C = п. D or C = 2пr.
| + | C = п. D or C = 2пr. |
| + | |
| ===Activity No # 1 Derivation of formula for circumference and the value for pi.=== | | ===Activity No # 1 Derivation of formula for circumference and the value for pi.=== |
| {| style="height:10px; float:right; align:center;" | | {| style="height:10px; float:right; align:center;" |