The points A, B and C are located at (11, -1), (7, -3) and (10, k) respectively. (a) Given that AB and BC are perpendicular, show that k=-9.

(b) The point D is such that ABCD is a rectangle. Find the equations of lines AD and CD.

(c) Hence find the coordinates of D.

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Ответ:

khloenm309

06.12.2021

Mathematics

26 + 18 = 44

44= ( 24+2) + 18

44= 24 + ( 2+18)

44= 24 + 20

I have no idea if this is right, but i tried! Good Luck!!

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The points A, B and C are located at (11, -1), (7, -3) and (10, k) respectively. (a) Given that AB and BC are perpendicular, show that k=-9.(b) The point D is such that ABCD is a rectangle. Find the equations of lines AD and CD.(c) Hence find the coordinates of D.