savannahc2004
savannahc2004 savannahc2004
  • 08-09-2021
  • Mathematics
contestada

Find the measure of the missing angle.

Find the measure of the missing angle class=

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aniilsah555
aniilsah555 aniilsah555
  • 08-09-2021

Step-by-step explanation:

  • 21°+90°+a=180°
  • 111°+a=180°
  • a=180°-111°
  • a=69°
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