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  3. Quantity A: The area of a triangle with a perimeter of 8Quantity B: 3A、Quantity

Quantity A: The area of a triangle with a perimeter of 8Quantity B: 3A、Quantity

游客2025-02-23  17
问题 Quantity A: The area of a triangle with a perimeter of 8
Quantity B: 3
选项 A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案 D
解析 (1)根据周长一定，边数一定，正多边形面积最大。正三角形边长8/3，高为，面积=

(2)当三条边无限接近成一条直线时，面积最小，接近0＜3。故答案为D。
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