MCQ
The area of an equilateral triangle with side $2\sqrt{3}\text{cm}$ is:
- A$0.866\ cm^2$
- B$1.732\ cm^2$
- ✓$5.196\ cm^2$
- D$3.496\ cm^2$
✓
Answer
Correct option: C.
$5.196\ cm^2$
Area of equilateral triangle $=\frac{\sqrt{3}}{4}(\text{Side})^2$
$=\frac{\sqrt{3}}{4}\times2\sqrt{3}\times2\sqrt{3}$
$=3\sqrt{3}$
$=3\times1.732=5.196\text{sq.cm}$
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