Question

what will be the perimeter of an equilateral triangle with one side measuring 20 cm​

Answer 1

perimeter of equilateral triangle= 3×side

so 20×3=60

Answer 2

☯GIVEN:-

• Equilateral triangle with one side measuring 20cm.

☯TO FIND:-

• What will be the perimeter.

☯UNDERSTAND:-

Here, we have to find the perimeter of equilateral triangle. We have given one side measuring as 20cm. As we know all sides of equilateral triangle are same, all sides will be of 20 cm.

Formula to be used:-

Perimeter of Equilateral triangle is 3 × side.

☯ SOLUTION:-

Diagram:-

$\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\thicklines\qbezier(1, 0)(1,0)(3,3)\qbezier(5,0)(5,0)(3,3)\qbezier(5,0)(1,0)(1,0)\put(2.85,3.2){ \bf A }\put(0.5,-0.3){ \bf C }\put(5.2,-0.3){ \bf B }\end{picture}$

$\large \sf{Perimeter = 3 \times side}$

$\large \sf{Perimeter = 3 \times 20}$

$\large \sf{Perimeter = 60cm}$

$\huge{ \pink { \boxed{ \underline{ \rm{ \purple{So, the \: perimeter \: of \: Equilateral \: triangle \: is \: 60cm. }}}}}}$