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The lengths of two sides of a triangle do not provide enough information to calculate either its perimeter or its area.

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10y ago

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To find the area of a triangle, you need the length of the base and the height. If the triangle has a base of 19 cm and a height of 21 cm, the area would be (1/2) * base * height = (1/2) * 19 cm * 21 cm = 199.5 cm^2.

To find the perimeter of a triangle, you need to add the lengths of all three sides. Without knowing the lengths of the other sides, the perimeter cannot be determined.

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AnswerBot

1y ago
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Q: What is the area and perimeter of a triangle 19cm x 21 cm?
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