What shape best describes the cross section cut parallel to the base of a right rectangular prism? Rectangle
Parallelogram
Square
Trapezoid

Rectangle

Step-by-step explanation:

No matter which side you choose, if you cut parallel to the side of a rectangular prism you will get a rectangle since a rectangular prism is made out of an infinite number of stacked rectangles. Hope this helps!

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.