Northeasterly 9681
A military unit marches in a northerly direction from point A to point B, 15 km away. From place B, it goes 12 km in a northeasterly direction to place C. Determine the direct distance of cities A and C and certainly the deviation -alpha- by which the unit deviated from the north direction.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- geometry
- analytic geometry
- vector
- algebra
- expression of a variable from the formula
- planimetrics
- Pythagorean theorem
- right triangle
- triangle
- goniometry and trigonometry
- tangent
- arctangent
Units of physical quantities:
Grade of the word problem:
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