The Sgure below is a rectangular box in which EFGH and ABCD are rectangles and B

Question

The Sgure below is a rectangular box in which EFGH and ABCD are rectangles and BF is perpendicular to planes EFGH and ABCD Use the figure to complete parts a through d b. Which pair of planes are perpendicular? a. What is the intersection of BF and plane EFG b. Which pair of planes are perpendicular? C. Vhich lines are perpendicular to plane ADE? d. What is the measure of the dihedal ange F-AB D? 10A, ADE and BCF O B. ABE and BCF O C. ABE and CDG OD, ABC and EFG c. Which lines are perpendicular to plane ADE? Select all that apply cick to select your answer(s)

Explanation / Answer

a) Point F i.e. option B.

b)ABE and BCF are perpendicular (option B). A plane is indicated by three points but can be extended.

c)B and D. AB and GH.

d) 120 degree

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