Triangle bac was dilated from triangle bde at a scale factor of 2. what proportion proves that sin

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

here is a big fat

noncoplanar points are points that do not lie on the same line.

$113.42

i hope that is right.

step-by-step explanation: