Weegy: This is true of perpendicular lines: D. They intersect at one point. They form right angles. User: 9. What is the circumference of a circle with a diameter of 30 centimeters?
A. 47.1 centimeters
B. 9.55 centimeters
C. 94.2 centimeters
D. 188.4 centimeters
Weegy: D. 94.2 centimeters User: 11. For a button to fit through its buttonhole, the hole needs to be the size of the button's diameter. What size buttonhole is needed ... (More)