Q:

1. What is the circumference of a circle with a radius of 3? (1 point)36912152. What is the area of a circle with a radius of 3? (1 point)36912153. What is the circumference of a circle with a diameter of 4? (1 point)481216244. What is the area of a circle with a diameter of 4? (1 point)481216245.In the figure above, if A is the center of the circle, what is the value of x?(1 point)31374754596.In the figure above, the ratio of the circumference of circle A to the length of arc DBC is 6:1.What is the value of x?

Accepted Solution

A:
1. [tex]6 \pi [/tex]
This is because 
[tex]c= \pi d \\ c= 6 \pi [/tex]

2. [tex]9 \pi [/tex]
because 
[tex]A= \pi r^{2} \\ A = \pi (3)^{2} \\ A = 9 \pi [/tex]

3. [tex]4 \pi [/tex]
[tex]C= \pi d \\ C= 4 \pi [/tex]

4. [tex]4 \pi [/tex]
[tex]A = \pi r^{2} \\ A = \pi (2)^{2} \\ A = 4 \pi [/tex]

Can't really answer the last 2 w/o the figures