# Triangle ABC

Calculate the sides of triangle ABC with area 1404 cm

^{2}, and if a: b: c = 12:7:18## Correct answer:

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

**algebra**- equation
- system of equations
**arithmetic**- square root
**planimetrics**- area of a shape
- triangle
- Heron's formula
**numbers**- real numbers

#### Units of physical quantities:

#### Grade of the word problem:

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