Algebra Geometry Practice Test Results

Question 1
51% answer correctly
Which of the following pairs are complementary angles?
83°, 97°
128°, 142°
38°, 52°
38°, -38°
Question 2
51% answer correctly
Which of the following pairs are supplementary angles?
98°, 82°
53°, 37°
53°, -53°
143°, 127°
Question 3
61% answer correctly
What`s the circumference of a circle that has a radius of 9?
56.55
14.14
28.27
399.72