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 Suma y resta Producto por escalar Producto Inversa
 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
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 Ecuación de una recta Posición relativa de dos rectas Distancias Angles in space Inner product

 Areas Rectangle A rectangle is a four-sided polygon with four right angles, whose opposite sides are parallel and are equal. A rectangle is a particular sort of parallelogram, but can't say that all parallelograms would be rectangles, because a rectangle is a shape where opposites sides are parallel and all the corners are 90 degree angles. Some parallelograms would be rectangles, but not all. Area of a rectangle The area of a rectangle is the product of its width and length. $Area=width\;\cdot\;length\;\;\;\;\;\;,\;that\;is\;\;A=b\;\cdot\;h$ Find the area of the rectangle where: Width + lenght equals 34and its lenght is 15Area=