C = 2pi*r
Plug in the circumference
6.28 = 2*pi*r
3.14 = pi *r
plug in pi
3.14 = 3.14 * r
r = 1
8
Mark brainliest please
Hope this helps you
Answer:
The two solutions for
are
and
, respectively.
Step-by-step explanation:
The sine function is positive in the first and second quadrants, that is,
. Then, there are two solutions for the given value by means of the following inverse trigonometrical function:

and
The two solutions for
are
and
, respectively.
Answer:
the last one
Step-by-step explanation:
Answer:
The height of the cone is 
Step-by-step explanation:
we know that
The volume of the cone is equal to

where
B is the area of the circular base of the cone
h is the height of the cone
In this problem we have


<em>Find the area of the base B</em>

substitute the value of r

<em>Find the height of the cone</em>


assume 
