Answer:
A pentagon.
Step-by-step explanation:
A pentagon is a 5-sided polygon. Its interior angles each are equivalent to 108°.
108° ≥ 90°, so the angles are obtuse.
Therefore, a 2-D shape with 5 obtuse angles is a <u>pentagon</u>.
Answer:

Step-by-step explanation:
Product refers to multiplication, hence the 4x.
Answer:
(B) x=\sqrt{30}
Step-by-step explanation:
Step-by-step explanation:
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