What is the address on a letter called? Choose the correct answer. the heading, the greeting, the body​

The heading

Step-by-step explanation:

The greeting is usually started with, "Dear (Person or agency name)"

the body is simply the place where you write what you want to write to the person.

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 the

mark brainliest pl