# TV tower

Calculate the height of the television tower if an observer standing 430 m from the base of the tower sees the peak at an altitude angle of 23°.

### 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
**planimetrics**- right triangle
- triangle
**numbers**- fractions
**goniometry and trigonometry**- tangent
- cotangent

#### Units of physical quantities:

#### Grade of the word problem:

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