When you divide two fractions, you actually just flip one over (it's reciprocal) and multiply them.

÷

Use the recriprocal of
<span>

÷

Multiply (3 x 8) and (4 x 1)
</span>

Divide
6
<span>
÷
= 6</span>
Answer:
1086.3 cm²
Step-by-step explanation:
surface are of sphere = πD²
SA = (3.14)(18.6 cm)^2
SA = 1086.3 cm²
Answer:
A. 
Step-by-step explanation:
Radius:
The length of diameter
is the distance between A and B.

Centre:
Since A and B are end points of the diameter, centre is the mid point of these two. Let
be the centre of the circle.

Centre is 
Equation of circle:
If
is the centre of the circle and
be the radius. Equation of circle is given by:

