krzivenko
krzivenko krzivenko
  • 04-02-2018
  • Mathematics
contestada

Help me find the x please

Help me find the x please class=

Respuesta :

jdoe0001 jdoe0001
  • 04-02-2018
∡IAD and ∡GCJ are alternate exterior angles, and therefore equal.

that means ∡IAD is 70°, now, ∡DAK is a right-angle, and "x" is there, and ∡x + ∡IAD add up to 90°, and therefore are supplementary angles.

we know ∡IAD is 70°, therefore then 

x + 70 = 90

x = 90 - 70.
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