EXERCISE 12.11.A traffic signal board, indicating ‘SCHOOL AHEAD, is – InterviewSolution

1.	EXERCISE 12.11.A traffic signal board, indicating ‘SCHOOL AHEAD, is an equilateral triangle withside a'. Find the area of the signal board, using Heron's formula. If its perimeter is180 cm, what will be the area of the signal board?The triangular side walls of a flythe w2·
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