While measuring the side of an equilateral triangle an error of k% is made, the percentage error in its area

Explanation

To find the percentage error in the area of an equilateral triangle when there is a k% error in measuring the side, we can follow these steps:

### Step-by-step Solution:

1. **Formula for the Area of an Equilateral Triangle**:
The area \( A \) of an equilateral triangle with side length \( x \) is given by the formula:
\[
A = \frac{\sqrt{3}}{4} x^2
...