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Geometry

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Not Obtuse

GEOM-LU4LHG

Which of the following angle(s) are NOT obtuse? Select ALL that apply.

A

$\angle A$

B

$\angle B$

C

$\angle C$

D

$\angle D$

E

Both $\angle A$and $\angle D$

F

Both $\angle A$, $\angle C$ and $\angle D$