Answer:
The constant between two consecutive terms is called the common difference. The common difference is the number added to any one term of an arithmetic sequence that generates the subsequent term.
Answer:
Already answered it
Step-by-step explanation:
No offense but this is really easy all you do is substitution
(2+3)= 5
Answer:
1. equal
2. add to 180
3. equal
4. add to 180
Step-by-step explanation:
as 1 and 3 are linear pairs
2 and 4 are vertically opposite angles
The formula for a cone is

insert 20 for your height and rearrange the formula to find the radius. Leave a comment if you need more help.