Btw stop reporting my stuff I'm just not trying to fail lma. o

Step-by-step explanation:

Red

i think all of them are true

Step-by-step explanation:

i looked through and it is proprtional, y equals 2x. and the first 2 are also correct.

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.

step-by-step explanation: