Introduction
In the given triangle ABC, A = 90 o . Squares BCDE, ABFG and ACKL are drawn on the sides of the triangle..
Introduction
Look at the pairs of figures in (A), (B), (C). They look alike. They have the same shape, though they do not have the same size. We say that they look alike or they are similar. The photograph of a person looks exactly like the person, though it is not of the same size. They are similar to each o..
Look at the pairs of figures in (A), (B), (C). They look alike. They have the same shape, though they do not have the same size. We say that they look alike or they are similar. The photograph of a person looks exactly like the person, though it is not of the same size. They are similar to each o..Introduction
When calculating sides or angles of right angled triangles, it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give accurate values for any degree o..
Introduction
In the given triangle ABC, A = 90 o . Squares BCDE, ABFG and ACKL are drawn on the sides of the triangle. area of square BCDE = BC 2 area of square ABFG = AB 2 area of square ACKL = AC 2 Pythagoras' theorem states that, area of square BCDE = area of square ABFG + area of square ..
In the given triangle ABC, A = 90 o . Squares BCDE, ABFG and ACKL are drawn on the sides of the triangle. area of square BCDE = BC 2 area of square ABFG = AB 2 area of square ACKL = AC 2 Pythagoras' theorem states that, area of square BCDE = area of square ABFG + area of square ..Trigonometry Introduction
Introduction - In Greek 'Trigonon' means a triangle. 'Metron' means a measure. The combination of these two words gives us the word 'Trigonometry'. Trigonometry is the branch of mathematics that deals with the relations between the sides and angles of triangles. In our..
Similarity Introduction Introduction - Look at the pairs of figures in (A), (B), (C). They look alike. They have the same shape, though they do not have the same size. We say that they look alike or they are similar. The photograph of a person looks exactly like the person, though it is not of the same size. The..
Introduction - Look at the pairs of figures in (A), (B), (C). They look alike. They have the same shape, though they do not have the same size. We say that they look alike or they are similar. The photograph of a person looks exactly like the person, though it is not of the same size. The..Inequalities Triangles
Introduction - We have studied so far about equalities in a triangle. In an isosceles triangle two of the sides are equal. In an equilateral triangle all the sides are equal. But there exist several situations where we need to compare quantities which are not..
Trigonometry XI Introduction
Trigonometry - is that branch of mathematics which deals with the measurement of sides and angles of triangles. The word, trigonometry is derived from Greek, which means the measure of triangles. This subject was originally developed to solve problems in astronomy and geometry. ..
Concurrent Lines Introduction
Introduction - Recall that if two straight lines are not parallel, they meet at a point when produced. Observe lines l and m which meet at a point (O). In the diagram, l and m are called intersecting lines. O is called the point of intersection. Similarly two line segments or two rays may..
Introduction - Recall that if two straight lines are not parallel, they meet at a point when produced. Observe lines l and m which meet at a point (O). In the diagram, l and m are called intersecting lines. O is called the point of intersection. Similarly two line segments or two rays may..Right Angled Triangles Index
Introduction - When calculating sides or angles of right angled triangles, it is easiest to use the appropriate trigonometric relation. Finding the value of trigonometric ratios from the tables is learnt easily. Nowadays of course calculators are able to give accurate values for..
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