Ron used 121 congruent equilateral triangles with 2 cm side lengths to form one large equilateral triangle. what is the perimeter of the large triangle?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

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