# Deviation 70434

Frustum has the base radii of the figures r1 and r2: r1> r2, r2 = s, and if the side deviation from the base plane is 60°. Express the surface and volume of the cone frustum using its side s.

## 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**- surface area
- frustum
**planimetrics**- area of a shape
- triangle
**numbers**- fractions
**goniometry and trigonometry**- cosine

### Units of physical quantities:

### Grade of the word problem:

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