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noobieplayerxd
08.01.2020 •
Mathematics
Find the equation of a line through (1,1) which
isperpendicular to a line through (1,3) and (2,5).
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Ответ:
Step-by-step explanation:
Point on a line is (1,3) and (2,5).
slope of given line is 2
slope of perpendicular lines are negative reciprocal of one another
slope of perpendicular line is -1/2
slope = -1/2 (1,1)
add 1 on both sides
Ответ:
1. ∠3, ∠5 are supplementary and ∠4, ∠6 are supplementary exterior sides in opposite rays.
2. ∠5 = ∠6 and ∠1 = ∠2 cpcte
3. ∠3 = ∠4 reflexive
4. mn = mn supplements to = angles.
5. triangle mnq congruent to triangle mnp asa 6. mq = mp given
the statements given above are true, but for proving mq = mp, it is sufficient to prove that the triangle mqp is an isosceles.
for that
∠1 = ∠2, because the line mn bisects ∠m in two similar parts, and
besides pq and mn are perpendicular, then it is obvious that mqp is an isosceles triangle.