What equation can be used for solve for x answers
tan (40)=19/x
sin(40)=x/19
sin(40)x/40
cos(40)=x/19​

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Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9