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Punjab Curriculum and Textbook Board was established in 1962 as West Pakistan Textbook Board. [3] Its functions are curriculum development, implementation of educational policies of the Government, publication of textbooks and production of supplementary reading material relating to textbooks.
Trigonometry (from Ancient Greek τρίγωνον (trígōnon) 'triangle' and μέτρον (métron) 'measure') [1] is a branch of mathematics concerned with relationships between angles and side lengths of triangles.
The book is written at a level suitable for high school students and interested amateurs, [1] [3] and McAndrew recommends the book to them. [ 2 ] Both Baggett and Gerry Leversha find the chapter on fractals (written by Robert A. Chaffer) [ 6 ] to be the weakest part of the book, [ 1 ] [ 4 ] and Joop van der Vaart calls this chapter interesting ...
Solution of triangles (Latin: solutio triangulorum) is the main trigonometric problem of finding the characteristics of a triangle (angles and lengths of sides), when some of these are known. The triangle can be located on a plane or on a sphere. Applications requiring triangle solutions include geodesy, astronomy, construction, and navigation.
In trigonometry, the law of sines, sine law, sine formula, or sine rule is an equation relating the lengths of the sides of any triangle to the sines of its angles. According to the law, = = =, where a, b, and c are the lengths of the sides of a triangle, and α, β, and γ are the opposite angles (see figure 2), while R is the radius of the triangle's circumcircle.
The Board is headed by a full-time Chairman whose term lasts three years and who technically reports to the Secretary of School Education in the Government of Punjab.The current Education Secretary of the board is IAS Sh Harsant Singh sekhon who is sincerely committed to shape the education system of Punjab by his pioneering Initiatives like ...
2015 Feb - Provided data backup services to Punjab Heritage Tourism Promotion Board for their rare records. 2015 Feb - Organized an exhibition at Banda Singh Bahadur Memorial at Chhapar Chiri, Mohali; 2015 Nov - Helped Punjab Government with the reprinting of Prince Waldemar's lithographs for Progressive Punjab Summit
The two triangles on the left are congruent. The third is similar to them. The last triangle is neither congruent nor similar to any of the others. Congruence permits alteration of some properties, such as location and orientation, but leaves others unchanged, like distances and angles. The unchanged properties are called invariants.