Circumference 26361
The ABCD diamond has a circumference of 72 cm. The longer diagonal of the animal with the line segment AB angle is 30 °. Calculate the area of the ABCD diamond.
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
- area of a shape
- triangle
- rhombus
- diagonal
- goniometry and trigonometry
- sine
Units of physical quantities:
Grade of the word problem:
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