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harina [27]
2 years ago
15

(easy math question please help) find the value of x question #6

Mathematics
1 answer:
yKpoI14uk [10]2 years ago
6 0

Answer:

Step-by-step explanation:

45+8x+21+90=180 degree(sum of interior angles of a triangle)

156+8x=180

8x=180-156

8x=24

x=24/8

x=3

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