Lessons · Grade 10
Angle of Depression: Formula and Examples
Learn the angle of depression formula, explore the interactive diagram, and follow worked building and cliff examples.
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Lessons · Grade 7
Co-Interior Angles In Simple Terms With Examples
Co-interior angles sit on the inside of parallel lines. They appear after a straight line crosses two parallel lines. Each angle pairs with another angle. These pairs form a special total.…
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Lessons · Grade 7
Adjacent Angles: Definition and Examples
Adjacent Angles Explorer 👉 DRAG the Red and Blue dots left or right to change the angles! Angle A (Red): 45 ° Angle B (Blue): 45 ° Total: 90 ° Definition: Adjacent angles are two angles…
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Lessons · Grade 4
Lines, Line Segments, Rays, and Opposite Rays
Lines Explorer 👉 DRAG the points to move the Line. Notice it goes forever! Line: ↔ AB Length: Infinite (∞) Definition: A line has no endpoints. It extends infinitely in both directions.…
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Lessons · Grade 7
Linear Pairs of Angles: Definition and Examples
Linear Pair Explorer 👉 DRAG the Red Dot left or right. Notice the sum is always 180°! Angle A (Left): 90 ° Angle B (Right): 90 ° Total: 180 ° Definition: A Linear Pair is a pair of adjacent…
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Lessons · Grade 7
90° Clockwise Rotation
90° CLOCKWISE ROTATION 👉 DRAG the Blue Point (A) to rotate it 90° clockwise. A A' Pre-image A : ( 3 , 4 ) Image A' : ( 4 , -3 ) RULE: (x, y) → (y, -x) The Rule: To rotate a point 90°…
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Lessons · Grade 7
90° Counterclockwise Rotation
90° COUNTERCLOCKWISE ROTATION 👉 DRAG the Blue Point (A) to rotate it 90° counterclockwise. A A' Pre-image A : ( 3 , 4 ) Image A' : ( -4 , 3 ) RULE: (x, y) → (-y, x) The Rule: To rotate a…
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Lessons · Grade 6
Theoretical vs Experimental Probability With Example
Introduction Probability helps people predict the chance of events. It also helps them understand how likely an outcome appears. Many daily situations involve an element of chance. Weather…
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Lessons · Grade 9
Everything you should know about Rational Numbers
What are Rational Numbers? Rational numbers are numbers that can be expressed as the ratio of two integers, where the denominator is not equal to zero. A rational number can be expressed as…
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Lessons · Grade 10
Angle of Elevation: Formula and Examples
Use tangent to calculate height above eye level, with clear worked examples and correctly formatted equations.
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Lessons · Grade 7
Supplementary Angles: Explanation With Examples
Supplementary angles refer to a pair of angles whose measures, when added together, sum up to 180 degrees. In other words, if the sum of two angles is 180 degrees, then they are…
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Lessons · Grade 7
Complementary Angles: Definition and Examples
Complementary angles add up to 90°. Learn how to identify them and find a missing angle with clear worked examples.
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