Angle of deviation
The surface of the rotating cone is 30 cm2 (with a circle base), and its surface area is 20 cm2. Calculate the deviation of this cone's side from the base's plane.
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
- solid geometry
- cone
- surface area
- planimetrics
- Pythagorean theorem
- right triangle
- triangle
- goniometry and trigonometry
- cosine
- arccosine
Units of physical quantities:
Grade of the word problem:
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