3 years ago

Can u help please :)

Mathematics

1 answer:

Lyrx [107]3 years ago

7 0

Answer:

z = 8

Step-by-step explanation:

All angles inside a triangle add up to 180 so:

90 + 40 + 5z + 10 = 180

5z + 140 = 180

5z = 40

z = 8

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