📐
Angles
★☆☆☆☆Elementary
📖Definition
An angle is formed when two lines meet at a point. The measure of an angle indicates how far apart the lines are.
📐Formulas
Acute: 0° < θ < 90°
Acute angle range
Right: θ = 90°
Right angle
Obtuse: 90° < θ < 180°
Obtuse angle range
Straight: θ = 180°
Straight angle
✏️Examples
예제 1★☆☆☆☆
If two angles are complementary and one is 35°, find the other.
예제 2★☆☆☆☆
If two angles are supplementary and one is 120°, find the other.
⚡Applications
Architecture
Structural design
Navigation
Direction measurement
🔗Related Documents
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