A pentigonal prism is cut by a plane perpendicular to the base. What is the shape of the cross section that is formed ? A. a pentagon with one pair of equal sides
B. a trapezoid with one pair of parallel sides
C. a rectangle
D. a triangle
E. a hexagon

2

In a right pentagonal prism, the bases are pentagons and the lateral faces are rectangles. If we take a cross-section perpendicular to the base, this same cross-section will be parallel to the lateral faces. This means it will be the same shape as the lateral faces, which is a rectangle.

Step-by-step explanation:

answer: c is correct, a regular pentagon

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3