The window is slightly opened, forming a 45° angle with the frame. What is the angle on the other side?, 135° (obtuse), 156° (obtuse), A firefighter opened the door so that it forms a 90° angle with the door frame. What is the angle on the other side of the door?, 90° (right), 90°(acute), A hand fan is fully opened. One of the angles formed between two adjacent ribs is 30°. What type of angle is this?, Acute, Obtuse

The Angle Quest

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