Question

which angle in the shape is acute? ∠r ∠t ∠s ∠q

Explanation:

An acute angle is an angle that measures less than 90 degrees. Observing the quadrilateral, ∠S is the only angle that appears narrower than a right angle, while ∠R, ∠Q, and ∠T appear to be obtuse (greater than 90 degrees).

Answer:

∠S