Solution: x=5, top angle=80, bottom angle=100
Step by step solution:
Since they are same side interior angles they are equal to 180 so we can set up an equation.
19x+5+17x-5=180
36x=180
x=5
Then plug in the x value in the original equations
19(5)+5=20(5)=100
17(5)-5=16(5)=80
Hope that helps :)
Sum of all interior angles = (n - 2) x 180.
Sum of all interior angles of a 70-gon = (70 - 2) x 180 = 12240°
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Answer: 12240°
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F(x) = 3x^3 -2x^2 - 19x -6