Trigonometry
Spherical trigonometry
Spherical trigonometry The spherical trigonometry is the branch of spherical geometry which deals with spherical triangles defined by great circles on the sphere. It allows us to calculate the trigonometric functions of the sides and […]
Algebra
Algebraic identities
Algebraic identities We have already used lot of identities in our generic problems we solved. It is important that we learn the basic algebraic identities and how to sue them depending on the situations. We […]
Analytic geometry
Square from the lounge
Square from the lounge Problem 25: Find the value of the blue shaded area in the following design. The area is inside a square with a side of 8 meters. The four holes are […]
Geometrie analytique
Trapèze, du hall
Trapèze, du hall Problème 24: Le trapèze isocèle, ABCD, ci-dessous a les deux bases qui mesurent 8 mètres et 18 mètres. 1. Trouver l’aire du cercle inscrit.
Geometrie analytique
Carré, du hall
Carré, du hall Problème 25: Trouver l’aire de la zone en bleu sur la figure suivante. La zone se trouve dans un carré de 8 mètres de côté. Les quatre trous sont cirulaires avec un diamètre de 600 millimètres […]
Algebra
Inequalities
Inequalities Inequalities appear to us in many forms. Imagine that we want to express the following sentence in an equation: The total number of cars parked here is at least 50. If this total is […]
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