Question

What is the area of an equilateral traingle whose each side is 14 cm long?

• A. $$49\sqrt{3}cm^2$$
• B. $$14\sqrt{3}cm^2$$
• C. $$21\sqrt{3}cm^2$$
• D. $$35\sqrt{3}cm^2$$

Answer 1

Answer:

$$49\sqrt{3}cm^2$$

Side of an trianglr a =14cm

Area of an equilateral triangle $=\frac{\sqrt{3}}{4}a^2$

$=\frac{\sqrt{3}}{4}\times{14\times{14}}$

$=49\sqrt{3}cm^2$