Rational or irrational?

I KNOW THE ANSWERS

Step-by-step explanation:

OKI pie is irrational because it goes on FOREVER!

-17 is rational

3.56 is irational bc never stops

same for the one underneth pie

the last botom 2 are rational becayse it sstops

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.