Activity 2: Modified True or False Directions: Write true if the sentence is correct and if it is incorrect, change the underlined word/s to make the sentence correct. 1. An arc is a portion of the circumference. 2. A tangent contains a chord. 3. One complete rotation is equivalent to a circumference. 4. Twice the radius is a diameter. 5. A chord always passes through the center of the circle. 6. Half of a circle is called a sector. 7. All tangents pass through only one point on the circle. 8. A straight line segment that passes through the center of a circle to any point on the circle is called diameter.