There are an infinite number of them. The smallest one is 42,
and every multiple of 42 is another one.
I don't remember the official correct way to solve this problem.
I can only show you my own way of doing it.
I take the bigger number, and I go through its multiples, one by one,
until I spot one that's also a multiple of the smaller one.
Example: 6 and 7.
Go through the multiples of 7:
7 ... no, not a multiple of 6
14 ... no, not a multiple of 6
21 ... no, not a multiple of 6
28 ... no, not a multiple of 6
35 ... no, not a multiple of 6
<em><u>42</u></em> ... Yes ! A multiple of 6. yay !
B. I do know if it’s a triangle but 180 degrees is what you need to get to so 104+76=180
By applying the formulas of present and future values of annuity we can solve this problem. In this mortgage problem, first we have to find loan amount after the down payment. It is 699,000 - 699,000 * 0.2 = 559,200$. We have to set it as PV (Present Value) of annuity. Using the PV formula
, we first find A, which is an annual payment. Exact calculation with mortgage calculator gives us A = 33,866.56$. After finding it, plugging this number into FV (Future Value) formula
, we find the value of the future value and it is 1,185,329.66$. And the total financial charge is 1,185,329.66 - 559,200 = 626,129.66$
Notice the first two vertices are reverse from each other (a,0) to (0,a)
the fourth vertex would be the reverse of the third one.
The fourth vertex would be (2a, a)