These types of angles have a sum of 180 degrees

right angle

Step-by-step explanation:

a right angle is an angle that is exactly 90 degrees by adding two of them together you get 180 degrees.

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

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