Zach keeps his pet chameleon pinky in a terrarium with the dimensions shown below. there are 3 inches of sand in the bottom of the terrarium. zach gets a new terrarium for pinky that is larger. the base of the new terrarium is 10 by 24 inches. zach moved the existing sand to the new terrarium. how deep will the sand be in the new terrarium?

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: