Chelsea drew two parallel lines KL and MN intersected by a transversal PQ, as shown below: Two parallel lines KL and MN with PQ
as a transversal intersecting KL at point R and MN at point S. Angle KRP is shown congruent to angle MSP. Which theorem could Chelsea use to show the measure of angle KRP is equal to the measure of angle QRL?
1 answer:
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Let , so that differentiating both sides wrt
gives
If and
, the above reduces to
This is the slope of the tangent line, which has equation
