The answers are C and E,
According to the interior and exterior angle theorem, this should be correct:
<3+<4+<6=180
<3+<1=180
<4+<6=<1
so they are the interior opposite of <1
Angle 1 and 2 are vertical angles
Hope this helps :)
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The answer is 15.
t must equal √2h/g but I don't see that in the choices above
