thu651777p0vibf
17.01.2021 •
Mathematics
Can somebody please help me with this.!
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Ответ:
1260
Step-by-step explanation:
First you will need to find the amount of sides of the polygon:
(After looking it is 9)
Each angle of the side of a nonagon is 140 degrees.
Multiply by 9 since you can make 9 triangles:
140 x 9 = 1260
Ответ:
they all multiple by 4 like y 2/4+ 4y- 21