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kballet084
kballet084 kballet084
  • 13-12-2014
  • Mathematics
Answered

The measures of two base angles of an isosceles trapezoid are 7x – 12 and 5x + 6. What is the measure of x?

Select one:

A3
B5
C7
D9

Verified Answer :

bayjo98241
bayjo98241 bayjo98241
  • 13-12-2014

Because base angles on an isosceles trapezoid are equal you set up this equation
7x - 12 = 5x + 6
-5x+12    -5x +12
2x        = 18
/2            /2
x = 9

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