Mathematics
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Triangle Area: Formula, Rules & Examples
Triangle area measures the two-dimensional region enclosed by three sides. The standard formula is A = bh/2, where b is…
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Triangle Altitudes: Formula, Rules & Examples
Triangle altitudes are perpendicular segments drawn from a vertex to the line containing the opposite side. Every nondegenerate triangle has…
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Trapezoid Area: Formula, Rules & Examples
Trapezoid area measures the two-dimensional region enclosed by a quadrilateral with one pair of parallel sides. If the parallel bases…
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Tangent: Formula, Rules & Examples
Tangent is a trigonometric function that compares the opposite and adjacent sides of a right triangle. Its basic formula is…
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Surface Area: 2D/3D Shapes
Surface area is the total area covering the outside of a three-dimensional object. To calculate it, identify every exposed face…
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Sphere Volume: Formula, Rules & Examples
Sphere volume measures the three-dimensional space enclosed inside a sphere. For radius r, the sphere volume formula is V =…
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Sphere Surface Area: Formula, Rules & Examples
Sphere surface area measures the total area covering the outside of a sphere. For a sphere with radius r, the…
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Sine: Formula, Rules & Examples
Sine is a trigonometric function that connects an angle to a ratio of lengths or coordinates. In a right triangle,…
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Similar Triangles: Formula, Rules & Examples
Similar triangles have the same shape but may have different sizes. Their corresponding angles are equal, and their corresponding side…
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Sector Area: Formula, Rules & Examples
Sector area measures the portion of a circle enclosed by two radii and the arc between them. If the central…
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