Find the area of the shaded part
of this figure.
26 m
18 m
10 m
12 m
28 m

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.

the answer is simply just 6n add the two together as they have an n