The bases
The bases of the isosceles trapezoid ABCD have 10 cm and 6 cm lengths. Its arms form an angle α = 50˚ with a longer base. Calculate the circumference and area of the ABCD trapezoid.
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
- perimeter
- triangle
- trapezoid
- goniometry and trigonometry
- cosine
- tangent
Units of physical quantities:
Grade of the word problem:
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