Question
Area of an equilateral triangle of side 10cm is:
✓
Answer
- $25\sqrt{3}\text{cm}^2$
Area of equilateral triangle $=\frac{\sqrt{3}}{4}(\text{Side})^2$
$=\frac{\sqrt{3}}{4}(10)^2$
$=25\sqrt{3}\text{sq.cm}$
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