Structure question 3 ppt

■ An acute angle is an angle that measures between 0 and 90 degrees.

■ A right angle is an angle that measures exactly 90°. A right angle is symbolized by a square at the vertex.

■ An obtuse angle is an angle that measures more than 90°, but less than 180°.

■ A straight angle is an angle that measures 180°. Thus, both of its sides form a line.

Straight Angle

180°

Obtuse Angle

Right

Angle

Symbol

Acute

Angle

–THEA MATH REVIEW–

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