225
no it equls 15
1 it is 90 180 270 360 450 540 630 720 810 900
450
8621
90, 180, 270, 360, 450, 540, 630, . . .
90, 180, 270, 360, 450, 540, 630 and so on.
298 + 152 = 450
90, 180, 270, 360, 450, 540, 630 . . .
90, 180, 270, 360, 450
90, 180, 270, 360, 450, 540, 630 +90 . . .
90, 180, 270, 360, 450, 540, 630, 720 +90 . . .
90, 180, 270, 360, 450
The multiples of 90 are an infinite set that starts 90, 180, 270, 360, 450, 540, 630, 720, 810, 900, and so on. The standard way is to multiply 90 by 1, 2, 3, 4 etc to obtain increasing multiples of 90.0, 90, 180, 270, 360, 450 etc
The first 6 multiples of 60 are: 60, 120, 180, 240, 300, and 360.The first 6 multiples of 90 are: 90, 180, 270, 360, 450, and 540.
225
90, 180, 270, 360, 450, 540