Answer:
elated Questions
and are tangents to a circle at points and , respectively. Minor arc is in.
and the radius of the circle is in. What is the number of degrees in angle ?
The lenhth of the radius of circle is times as long as the radius of circle . If the radius of circle is units, what is the area (in square units) of circle ? （ ）
The area of a circle is . What would be the area if you triple the radius of the circle? （ ）
None of the above
Line and line lie in the same plane but have no points in common. They are both tangent to a circle of area . What is the shortest distance between any point on and any point on ?
In the figure, is a diameter of the circle with center and . What is the measure of arc . （ ）
Find the length of one side of a nine-sided regular polygon inscribed in a circle of radius inches.
Noirin is knitting matching hats for herself and her daughter. Her hat has a circumference of centimeters. What is the circumference of her daughter's hat if she uses a scale factor of ?
A communication satellite completes a circular orbit around Earth every hours. The radius of Earth is about km and the satellite orbits km above Earth’s surface. How far does the satellite travel in hour?
Let denote the area of a circular region. Which of the following denotes the circumference of that circular region? （ ）
If the area of the square in the figure above is square meters, what is the circumference in meters of the circle? （ ）
Answer:D
A.6pi
B.9pi
C.12pi
D.15pi
