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Answer:

An obtuse angle is an angle greater than 90° but less than 180°

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christa16
An obtuse angle is a type of angle whose degree measurement is more than 90° but less than 180°. Examples of obtuse angles are: 100°, 120°, 140°, 160°, 170°, etc. ∠ PQR is an obtuse angle because it's less than 180° and greater than 90°.