Answer:
because AE touches the circumference of circle c.
Step-by-step explanation:
we know that CA is a radius of circle C. so we know that A touches the circumference.
so if the line kept going, it still woulnt go through the circle, only touch the circumference. which is what a tangent is
<h2>
At the moment when the radius is 24 centimeters, the volume is increasing at a rate of 2171.47 cm³/min.</h2>
Step-by-step explanation:
We have equation for volume of a sphere

where r is the radius
Differentiating with respect to time,

Given that
Radius, r = 24 cm

Substituting

At the moment when the radius is 24 centimeters, the volume is increasing at a rate of 2171.47 cm³/min.
Answer:
12
Step-by-step explanation:
12
Answer:
60.84 m
Step-by-step explanation:
The perimeter is the distance around
The distance around the 3 sides of the rectangle are
15+12+15
42
Now we are going 1/2 way around the circle
That is 1/2 of the circumference
1/2 C = 1/2 pi *d
= 1/2 pi *12
= 6pi
Using 3.14 for pi
= 6 (3.14)
=18.84
Add these together
42+18.84
60.84 m