Show that the perpendicular let fall from any points on the straight line 7x - 9y + 10 = 0 upon the  two straight lines 3x + 4y - 5 = 0 and 12x + 5y - 7 = 0 are equal to each other.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Show that the perpendicular let fall from any points on the straight line 7x - 9y + 10 = 0 upon the  two straight lines 3x + 4y - 5 = 0 and 12x + 5y - 7 = 0 are equal to each other.
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