# Embankment 7879

An embankment 7.5 m high should be built on the horizontal plane. The width of the upper surface of the embankment is 2.9 m, and the slope is 35 °. What will be the lower width of the embankment?

### Correct answer:

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The line slope calculator is helpful for basic calculations in analytic geometry. The coordinates of two points in the plane calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of the segment, intersections of the coordinate axes, etc.

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See also our right triangle calculator.

See also our trigonometric triangle calculator.

#### You need to know the following knowledge to solve this word math problem:

**planimetrics**- Pythagorean theorem
- right triangle
- triangle
- trapezoid
**goniometry and trigonometry**- sine
- cosine
- tangent

#### Units of physical quantities:

#### Grade of the word problem:

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