1. segment ra=segment rb, rs||ab given 2. ∠a = ∠b base ∠'s of isosceles triangle = 3. ∠a = ∠2 if lines ||, corresponding ∠'s = 4. ∠b = ∠1 if lines ||, alternate interior ∠'s = 5. ∠1 = ∠2 substitution

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step-by-step explanation:

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it's both, now can you answer my most recent question?

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v