If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°? a)9π feet
b)29π feet
c)95π feetd)92π feet

Circumference = 2 * PI * radius
circumference = 2 * PI * 10

arc length = (81 / 360) * 2 * PI * 10
arc length = (1,620 / 360) PI
arc length = 4.5 PI feet

Which is not one of the choices

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.