A20° sector in a circle has an area of 684 yd2.

what is the area of the circle?

yd2

fourth month

step-by-step explanation:

it is the one with the most keychains.

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.