Answer:
The radius is 4 because since the diameter is 8, the radius is half of the diameter.
The arithmetic sequence general formula is an = a1 + d *(n-1) where d is the arithmetic difference and n is an integer. In this case, upon derivation, the formula that represents the sum of the series is S = (a1 + an)*(n/2). Substituting, S = (3+75)*(10/2) equal to 390
Answer:
the queation says from ques no 2 so you should take a full picture
