# Determine 8133

Determine the distance between two places, M, and N, between which there is an obstacle so that place N is not visible from place M. The angles MAN = 130°, NBM = 109°, and the distances |AM| = 54, |BM| = 60, while the points A, B, and M lie on one straight line.

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

**geometry**- line
**planimetrics**- right triangle
- triangle
- The Law of Cosines
- The Law of Sines
**goniometry and trigonometry**- sine
- cosine
- tangent

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