Mathematics, 25.07.2021 05:00 yanelyportillo7
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?
Answers: 1
, where 
, 
, and 
are three sides of the triangle and 
is the semi-perimeter (
).
.
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A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side a. Find the...
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