If you know the radius of a circle how do you find its circumference

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

The letters g e o r g i a are placed in a bag . if you picked a card and knew it was a vowel , what is the probability that it is an a ?

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?