Stefani slices a right rectangular pyramid with a plane, and the cross-section is in the shape of a trapezoid. How does Stefani slice the pyramid?

A) parallel to the base through the vertex
B) perpendicular to the base through the vertex
C) parallel to the base but not through the vertex
D) perpendicular to the base but not through the vertex

oof

step-by-step explanation:

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.

150

step-by-step explanation: