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(7 + i) - (6 - 2i) = 7 + i - 6 + 2i = 1 + 3i
Not A because regular means all sides are equal.
B has to be the answer because the others are not.
Not C because a right triangle is not regular, i.e. and equilateral triangle.
Not D because a rectangle has different side lengths.
Answer:
Step-by-step explanation:complementary angles