Find the measures of angle X and angle Y

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)