8-1-(18-2)/18 /= divide use pemdas
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If the area of the triangle and the rectangle is 4 square cm and 2 square cm. Then the total surface area of the triangular prism will be 14 square cm.
<h3>What is a triangular prism?</h3>A closed solid with two parallel triangular bases joined by a rectangle surface is known as a triangular prism.
The total surface area of the triangular prism will be
Total surface area = 2(area of the triangle) + 3(area of the rectangle)
The area of the rectangle will be
Rectangle area = 2 x 1
Rectangle area = 2 square cm
The area of the triangle will be
Triangle area = 0.5 x 4 x 2
Triangle area = 4 square cm
Then the total surface area will be
Total surface area = 2 x 4 + 3 x 2
Total surface area = 8 + 6
Total surface area = 14 square cm
More about the triangular prism link is given below.
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