# Angles of elevation

From points A and B on level ground, the angles of elevation of the top of a building are 25° and 37°, respectively. If |AB| = 57m, calculate, to the nearest meter, the distances of the top of the building from A and B if they are both on the same side of the building.

### Correct answer:

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

**arithmetic**- square root
- rounding
**planimetrics**- right triangle
- triangle
**numbers**- fractions
**goniometry and trigonometry**- tangent

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