Question

find the area of triangle ......​

Answer 1

Answer:

200 cm³

Step-by-step explanation:

Answer 2

$\huge{\purple{\underline{\underline{\bf{\pink{Solution:-}}}}}}$

$\bullet\;\;\underline{\textbf{\textsf{AnswEr:-}}}$

• Area of the triangle = 100 $\sf {\sqrt{3}\:cm^2}$

$\bullet\;\;\underline{\textbf{\textsf{Given:-}}}$

• The given side is 20 cm.

$\bullet\;\;\underline{\textbf{\textsf{Need To Find:-}}}$

• The area of triangle = ?

$\:\:\:\:\;\:\;\footnotesize\bold{\underline{\underline{\sf{\red{Step\:by\:step\: Explanation:-}}}}}$

$\bullet\;\;\underline{\textbf{\textsf{Formula used here:-}}}$

${\underline{\boxed{\sf{Area \: of \: equilateral \: triangle = \dfrac{\sqrt{3}}{4}\: a^2}}}}$

$\bullet\;\;\underline{\textbf{\textsf{Putting the values:-}}}$

$\longrightarrow \sf {Area \: of \: equilateral \: triangle = \dfrac{\sqrt{3}}{4}\: 20^2}$

$\longrightarrow \sf {Area \: of \: equilateral \: triangle = \dfrac{\sqrt{3}}{4}\: 400}$

$\longrightarrow \sf {Area \: of \: equilateral \: triangle = \sqrt{3} \times 100}$

$\longrightarrow \sf {Area \: of \: equilateral \: triangle = 100 \: \sqrt{3}\:cm^2}$

$\bullet\;\;\underline{\textbf{\textsf{Therefore:-}}}$

• Area of the triangle = 100 $\sf {\sqrt{3}\:cm^2}$

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬