Let
be the measure of the angle in question. Its complement has measure
. We're told that this angle is congruent to 1/3 of its complement, so that

Looks write but i think ur missing somthing
Answer:
$ (C/t ) × 5
= $ 5C/t
.....................................
I got 70
Combination=n!/((n-r)!r!)
=8!/((8-4)!*4!)
=8*7*6*5*4!/(4!*4!)
=8*7*6*5/(4*3*2)
=70 ways