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2022 CCA Math Bonanza
I6
Around 109.5 degrees
Around 109.5 degrees
Source:
April 26, 2022
Problem Statement
Let regular tetrahedron
A
B
C
D
ABCD
A
BC
D
have center
O
O
O
. Find
tan
2
(
∠
A
O
B
)
\tan^2(\angle AOB)
tan
2
(
∠
A
OB
)
.2022 CCA Math Bonanza Individual Round #6
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