1. two outside angles that lie on different sides of a transversal alternate exterior angles
2. lines that intersect and create right angles
exterior angles
3. lines that never cross one another and are the same distance apart at all times
alternate interior angles
4. two inside angles that lie on different sides of a transversal
transversals
5. lines that share one point
interior angles
6. two angles in the same position on different lines
parallel lines
7. lines that intersect two or more lines to create angles
intersecting lines
8. inside angles
perpendicular lines
9. outside angles
corresponding angles

assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation:

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true

step-by-step explanation:

for volume, add base x height x width