Question

what is the relationship between a and b? last answer is none of the above!

Answer 1

Answer:

its B I think. because it should equal 90°

Answer 2

Answer:

B) Complementary angles

Step-by-step explanation:

∠AXB + ∠CXB = 180    { Straight line}

∠AXB + 90 = 180          { given  ∠CXB=90}

∠AXB = 180 - 90

∠AXB = 90

a + b = 90

If sum of two angles is 90, then the two angles are complementary angles.