Calculate the area of the sign board — task. Maths TNSB Mentoring, Class 9.

The perimeter of the triangular traffic sign board is 180 \(cm\), where all the sides are equal. Calculate the area of the sign board in square metre.

Area of the traffic sign board \(=\)

\( 0.156 \ m^2\)
\( 1.557 \ m^2\)
\( 1557 \ m^2\)
\(0.0018 \ m^2\)
\( 15570000 \ m^2\)

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3. Calculate the area of the sign board

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