Question 13 Marks
Find the area of an equilateral triangle having each side $4\ cm$.
Answer
View full question & answer→Area of an equilateral triangle having each side a cm is given by:
$\text{A}=\frac{\sqrt{3}}{4}\text{a}^2$ Area of the given equilateral triangle having each equal side equal to $4\ cm$ is given by:
$\text{a} = 4\text{cm}$ $\text{A}=\frac{\sqrt{3}}{4}(4)^2$
$\text{A}=\frac{\sqrt{3}}{4}\times16$ $\text{A}=4\sqrt{3}\text{cm}^2$
$\text{A}=\frac{\sqrt{3}}{4}\text{a}^2$ Area of the given equilateral triangle having each equal side equal to $4\ cm$ is given by:
$\text{a} = 4\text{cm}$ $\text{A}=\frac{\sqrt{3}}{4}(4)^2$
$\text{A}=\frac{\sqrt{3}}{4}\times16$ $\text{A}=4\sqrt{3}\text{cm}^2$