SAT Math Practice Question #27109 - SATify | SATify

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SAT Math Practice Question #27109 - SATify | SATify

#27109

geometry

3d geometry

combinatorics

medium

120 sec

How many unordered pairs of edges of a regular tetrahedron determine a plane?

A.

6

B.

9

C.

12

D.

15

E.

18