question_answer

    A traffic signal board, indicating 'SCHOOL AHEAD', is an equilateral triangle 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? What message given by the traffic signal board for different type of vehicles?        

Answer:

    We  know that, an equilateral triangle has equal sides, So, all sides are equal to a. Perimeter of triangle               [given]                                                                         (1/2)    []   (1) Area of an equilateral triangle                                (1/2)                                                              (1) Message 'SCHOOL AHEAD' given by a traffic signal board tells to all vehicles is that drive                slowly because students are entre in the school. Also, some students get down from               the bus, so drive carefully to stop any kind of accidential case.                                                                                                                                                                                           (1)