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rtroy23
rtroy23 rtroy23
  • 27-04-2016
  • Mathematics
Answered

The Question is in the file below. (Khan Academy)

The Question is in the file below. (Khan Academy) class=

Verified Answer :

apologiabiology
apologiabiology apologiabiology
  • 27-04-2016

that little squaer angle means right angle or 90 degrees

the black line and the red line cross

therefor the oposte angles are eqal measure
7x=90+x
solve
minus x
6x=90
divide 6
x=15

x=15

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