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A triangular traffic sign has a height of 45 cm. It is 75 cm long at its base. What is the area of the sign?

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\text{A}=(1)/(2)\cdot\text{a}\cdot\text{h}\\\\\text{a}\longrightarrow\text{base}\\\\\text{h}\longrightarrow\text{height}\\\\-----------\\\\\text{a}=75 \ \text{cm}\\\\\text{h}=45 \ \text{cm}\\\\\text{A}=(1)/(2)\cdot75 \ \text{cm}\cdot45 \ \text{cm}=37,5 \ \text{cm}\cdot45 \ \text{cm}=\boxed{1687,5 \ \text{cm}^2}

User Sanket Sudake
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3 votes

Answer:

Explanation:

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(75* 45)/2 => 1687, 5 cm²

User GChuf
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