Lesson Topics Discussion Quiz: Class Homework |
Example1 |
Title: Circles |
Grade Lesson s4-l1 |
Explanation: The best way to understand PSAT-4 is by looking at some examples. Take turns and read each example for easy understanding. |
Examples
Topics → Definition Example1 Example2 Example3
The circumference of a circle is 31.4 cm. Find its radius.
Step: 1 |
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The given circumference of a circle is 31.4 cm The formula to calculate the circumference of a circle is C = 2πr. Substitute the values in the formula: 31.4 = 2πr Divide both sides of the equation by 2π \$31.4 / (2π) = r\$ r = 5 cm |
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Explanation: |
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Here, the given data and used to find the circumference of the circle by using the formula. |
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