Carla must ice a german chocolate cake. the diameter of the cake is 6 cm. use the formula a = 3.14 x r2 to find the area of the cake.

So area of cake
area=pi times radius^2
diameter=2radius
diameter/2=radius
find radius

diameter=6
6/2=raidus=3

formula is
A=3.14 times 3^2
A=3.14 times 9
A=28.26 cm^2

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

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