Question

A traffic Signal board, indicating 'SCHOOL AHEAD' Is an equilateral traingle with side 'a' .Find the Area of the signal Board, using heron's Formula.If its perimeter Is 180 cm, What will be the Area of The signal Board ? <br /><br />Please Tell correct Answer with full Explanation...​

Answer 1

Step-by-step explanation:

Given Perimeter =180 cm

Given Perimeter =180 cmSemi-perimeter s=2180

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cm

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equal

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=180

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=1803a=180

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=1803a=180a=60 cm

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=1803a=180a=60 cmArea of triangle =s(s−a)(s−b)(s−c)

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=1803a=180a=60 cmArea of triangle =s(s−a)(s−b)(s−c)                           =90(90−60)(90−60)(90−60)

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=1803a=180a=60 cmArea of triangle =s(s−a)(s−b)(s−c)                           =90(90−60)(90−60)(90−60)                           =90×30×30×30

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=1803a=180a=60 cmArea of triangle =s(s−a)(s−b)(s−c)                           =90(90−60)(90−60)(90−60)                           =90×30×30×30                           =(9×3×3×3)×(10)4

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=1803a=180a=60 cmArea of triangle =s(s−a)(s−b)(s−c)                           =90(90−60)(90−60)(90−60)                           =90×30×30×30                           =(9×3×3×3)×(10)4                           =(92)×3×(10)4

Given Perimeter =180 cmSemi-perimeter s=2180s=90 cmSince all sides of equilateral triangle are equalSo,Perimeter =180a+a+a=1803a=180a=60 cmArea of triangle =s(s−a)(s−b)(s−c)                           =90(90−60)(90−60)(90−60)                           =90×30×30×30                           =(9×3×3×3)×(10)4                           =(92)×3×(10)4                           =9×3×(10)2

                           =9×100×3

                           =9×100×3                           =9003

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Answer 2

Answer:

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