Answer:[10] Using the formula (n - 2)180/n for the vertex angle of a regular n-gon, we find that the vertex angle for a regular hexagon is 120 degrees and for a regular octagon it is 135 degrees.
Explanation: We use the formula P=A/D, where P is the payment amount, A is the amount borrowed, and D is the discount factor.
The discount factor is given by the formula D={[(1+r)^n]-1}/[i(1+i)^n], where i is the monthly interest rate as a decimal number and n is the number of months taken for repayment.
For this problem, we have 12.5%; 12.5%=12.5/100=0.125. This makes the monthly interest rate, i, 0.125/12=0.01042.
The number of months for repayment, n, will be 2*12=24.
Using these we have D={[1+0.01042)^24]-1}/[0.01042(1+0.01042)^24], which gives us D=21.1375.
We plug this in for D in our payment formula.
Additionally, we know that A=6200, since that is what is borrowed: P=6200/21.1375=293.32.</span>
