# Quadrilateral pyramid

The regular quadrilateral pyramid has a base edge a = 1.56 dm and a height h = 2.05 dm.

Calculate:

a) the deviation angle of the sidewall plane from the base plane

b) deviation angle of the side edge from the plane of the base

Calculate:

a) the deviation angle of the sidewall plane from the base plane

b) deviation angle of the side edge from the plane of the base

## 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**- pyramid
**planimetrics**- right triangle
- triangle
- square
- diagonal
**goniometry and trigonometry**- tangent
- arctangent

### Units of physical quantities:

### Grade of the word problem:

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