I dont know if im correct but i think its C
The <u>correct answer</u> is:
D) <span>when the plane makes a narrow angle with the base.
Explanation:
If a cross section of a prism is taken <u>parallel</u> to the base, the cross section will be the <u>same shape</u> as the base. In this case, it will be a 9 sided polygon.
If a cross section of a prism is taken <u>perpendicular</u> to the base, the cross section will be a <u>rectangle</u>, no matter how many edges the cross section goes through.
The only way to get a cross section with more sides than the original figure is to take a slant cross section, or one with an angle other than 90</span>° or 180° to the base. This makes D our only option.
Answer:
59
Step-by-step explanation:
z-28+2z+31=180 (angle sum property of a triangle)
3z +3 =180
3z=177
z=177/3
therefore z=59
