Plz ! a candy bar box is in the shape of a triangular prism. the volume of the box is 3,240 cubic centimeters. a triangular prism is shown with base of triangle labeled 24 cm, sides of the triangle labeled 15 cm, and length of the box equal to 30 cm. part a: what is the approximate amount of cardboard used to make this candy box? explain how you got your answer. (5 points)

10,800cm of cardboard was used, because 24 x 15 x 30 is equal to 10,800 and because it's a triangular prism that's means that's the sides will add to 1 whole and this is correct

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.