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16-01-2021
Mathematics

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Determine the value of z

Determine the value of z class=

Respuesta :

16-01-2021

Answer:

C

Step-by-step explanation:

First we need to find out y.

5y + 45 = 180 (angles on straight line)

y = 27

5y = 135

Then we could apply the angle sum of a pentagon to find out z.

90 + 5y + z + 82 + 135 = 180(5-2)

442 + z = 540

z = 98 i.e. C

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