1,483 prompts matching "Finding an angle with the cosine rule (IGCSE/WAEC Revision)"
Practice set: Joint variation with two variables
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Quiz me: Factorising when the coefficient of x squared is one
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Teach me: Why completing the square works
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Quiz me: Writing a quadratic in the form (x + a) squared plus b
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Spot my mistake: Deriving the quadratic formula
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Spot my mistake: Whether a parabola has a maximum or a minimum
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Word problem: A quadratic graph with no real roots
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Teach me: The arc as a fraction of the circumference
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Spot my mistake: The arc length left out of a sector's perimeter
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Teach me: The sector area as a fraction of the circle
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Quiz me: The volume of a cylinder found from its diameter
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Spot my mistake: The surface area of a cylinder
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Teach me: A frustum as a cone with its top removed
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Quiz me: The volume of a frustum as a difference of two cones
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Spot my mistake: The total surface area of a frustum
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Word problem: Finding a radius from a given frustum volume
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Teach me: A compound solid made of a cone and a cylinder
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Quiz me: The volume of a cylinder topped by a hemisphere
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Spot my mistake: The faces hidden where two solids join
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Worked example: Finding a missing dimension from a given compound volume
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