# Silver medal

A circular silver medal with a diameter of 10 cm is an inscribed gold cross consisting of five equal squares. What is the area of the silver part?

b) What is the area of the golden cross?

b) What is the area of the golden cross?

### 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
**arithmetic**- square root
**planimetrics**- Pythagorean theorem
- circle
- area of a shape
- square
**numbers**- fractions

#### Units of physical quantities:

#### Grade of the word problem:

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