# Error multiplication

In measuring the sides of a rectangle errors of 5% and 3% in excess are made. Find the error percent in the calculated area .

## 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**- multiplication
**planimetrics**- area of a shape
**basic functions**- percentages

### Units of physical quantities:

### Grade of the word problem:

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