7. Which one of the following statements is true of perpendicular lines? A. They intersect at one point. B. They intersect to form an obtuse angle. C. They never intersect. D. They intersect
to form an acute angle.
This is true of perpendicular lines: D. They intersect at one point. They form right angles.
Original conversation
User: 7. Which one of the following statements is true of perpendicular lines? A. They intersect at one point. B. They intersect to form an obtuse angle. C. They never intersect. D. They intersect to form an acute angle.

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
latefisher|Points 3420|

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 for a button with a circumference of 7.38 centimeters? (Use the value of 3.14 to represent pi.) A. 5.14 centimeters B. 3.69 centimeters C. 2.35 centimeters D. 1.14 centimeters

Weegy: C. 1.14 centimeters
Erry12|Points 50|

User: 12. The spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of the wheel is 42 inches, how long is each spoke? Round your answer to the nearest hundredth. A. 7 inches B. 6.25 inches C. 13.38 inches D. 6.69 inches

Weegy: C=pi*D; 42=3.14*D; D=42/3.14; D=13.375 (diameter). The spoke is half the diameter (radius). The length of each spoke therefore is 13.375/2 = 6.69 inches.

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