Question

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which angle is an acute angle?
○ ∠aoc
○ ∠eoc
○ ∠doc
○ ∠boa

Explanation:

An acute angle is defined as an angle that measures greater than $0^\circ$ and less than $90^\circ$.

• $\angle AOC$: This angle is greater than $90^\circ$ (obtuse).
• $\angle EOC$: This angle is greater than $90^\circ$ (obtuse).
• $\angle DOC$: This angle is between $0^\circ$ and $90^\circ$ (acute).
• $\angle BOA$: This angle is exactly $90^\circ$ (right angle).

Answer:

$\boldsymbol{\angle DOC}$