A straight angle measures 180° and equals two right angles. Dividing a straight angle into two equal parts results in two right angles, each measuring 90°, often seen in linear or perpendicular geometry.
Class 6 Mathematics Ganita Prakash Lines and Angles
Class 6 Mathematics Chapter 2 Lines and Angles question answer
A straight angle, measuring 180°, represents a half-circle rotation. It is composed of two right angles, each measuring 90°. For instance, if a straight angle ∠ABC is bisected by ray BD, it creates ∠ABD and ∠DBC, both being right angles. This relationship illustrates the concept of perpendicularity, where two lines intersect to form right angles. Understanding this helps in geometry to construct perpendicular lines or divide angles accurately.
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