Planes x and y are perpendicular. points a, e, f, and g are points only in plane x. points r and s are points in both planes x and y. lines ea and fg are parallel. based on this information, which lines could be perpendicular to rs? check all that apply. ea, er, ef, fg, fs

we know that

Perpendicular lines are lines that intersect other lines and forms a right angle .

see the attached figure to better understand the problem

therefore

the answer is

Lines AE and FG are perpendicular to line RS. They form ° angles.

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's