elemelon101 elemelon101
  • 11-06-2021
  • Mathematics
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Find the value of x 720​

Find the value of x 720 class=

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sqdancefan
sqdancefan sqdancefan
  • 12-06-2021

9514 1404 393

Answer:

  x = 63

Step-by-step explanation:

The base angles of each isosceles triangle are equal, so we can write the sum of the four angles in the quadrilateral as ...

  72° +(72° +x°) +x° +90° = 360° . . . . . clockwise from upper left

  2x = 126 . . . . . . . . . divide by °, subtract 234

  x = 63 . . . . . . . . . . . divide by 2

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