Diagonals of pentagon
Calculate the diagonal length of the regular pentagon:
a) inscribed in a circle of radius 12dm;
b) a circumscribed circle with a radius of 12dm.
a) inscribed in a circle of radius 12dm;
b) a circumscribed circle with a radius of 12dm.
Correct answer:

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You need to know the following knowledge to solve this word math problem:
- algebra
- expression of a variable from the formula
- planimetrics
- right triangle
- circle
- polygon
- area of a shape
- triangle
- diagonal
- goniometry and trigonometry
- sine
- cosine
- tangent
Units of physical quantities:
Grade of the word problem:
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