Answer:
78
Step-by-step explanation:
A=base*height
10*7.8
Answer:
the slope is -2
Step-by-step explanation:
Answer:


Step-by-step explanation:
Given
A circular ring
Required
The length
Let
the radius of the ring
The length is calculated by calculating the circumference of the ring.
This is calculated using:

or

Where
diameter
and 
It can be measured in many things. it can be in mL, which is specifically for volume,but it can also be in any kind on length, as long as that distance is cubed. an example is that 1 foot cannot be a volume of something but 1 ft^3 aka 1 ft cubed can.