andres22 andres22
  • 04-01-2017
  • Mathematics
contestada

find the value of x and unknown interior angle for each triangle

find the value of x and unknown interior angle for each triangle class=

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royalranger
royalranger royalranger
  • 04-01-2017
The interior angles of a triangle add up to 180 degrees, therefore:

40 + 40 + x-10 = 180
80 + x - 10 = 180
70 + x = 180 
x = 110

< D = 110 - 10 = 100
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