Circumscribed 22713
Calculate the circumference and the area of a regular ten-angle polygon if the radius of the circumscribed circle r = 20 cm.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- planimetrics
- Pythagorean theorem
- right triangle
- circle
- polygon
- area of a shape
- perimeter
- triangle
- goniometry and trigonometry
- sine
Units of physical quantities:
Grade of the word problem:
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