kayleemiller320
kayleemiller320 kayleemiller320
  • 22-11-2020
  • Mathematics
contestada

What is the value of z?

What is the value of z class=

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avarose566
avarose566 avarose566
  • 22-11-2020
Answer:

z = 86

Explanation:

90 - 68 = 12
180 - 78 = 102
102 + 12 = 114
180 - 114 = 86


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erin18weisheim
erin18weisheim erin18weisheim
  • 22-11-2020
z=56°
explanation: since the one angle is 90°, you need to take 68 away from 90, you get 22. then since the line between angle 78° and y, would add up to 120°, you must take 78° away from 120°, giving you 42 for angle y. now for 3-sided triangles, their 3 angles add up to 120°, so add 42 and 22, you get 64, and finally take 64 away from 120 and you get angle z, which is 56°
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