Cross-section 46841
The cross-section of the channel has the shape of a trapezoid. The bottom width is 2.25 m, and the depth is 5 m. The walls have a slope of 68°12' and 73°45'. Calculate the upper channel width.
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
- trapezoid
- numbers
- fractions
- mixed numbers
- goniometry and trigonometry
- tangent
- cotangent
Units of physical quantities:
Grade of the word problem:
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