Answer and Explanation
Your Answer is
Correct Answer is J
Explanation
The number of acute angles complementary to the angle to be sought = 180°-90°-70°=20°, so the degree of the angle to be sought is =180°-20°=160°.
44. While lifting weights, a person sits on an incline weight bench and pushes the weights straight up, as shown in the figure below on the left. The weight bench is shown below on the right. The angle between the horizontal seat and the backrest is 110°. What is the measure of the angle between the backrest and the vertical path of the weights?
