JHANSI KI RANI - STORY IN HINDI


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MATHEMATICS - TRIANGLE

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                                                     TRIANGLE A  triangle  is a closed figure bounded by the three line segments. Two Ways to Classify Triangles: l   By Their Sides l   By Their Angles Classifying Triangles   by Their Sides Scalene Triangles l   No sides are the same length Isosceles Triangles l   At least two sides are the same length Equilateral Triangle l   All sides are equal Classifying Triangles  By Their Angles l   Acute l   Right l   Obtuse Acute Triangles l   Acute triangles have three acute angles Right Triangles l   Right triangles have one right angle Obtuse Triangles l   Obtuse triangles have one obtuse angle Angle prop...
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Congruence of Triangle - class 7(2)

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Congruence of Triangles: Congruence is the term used to define an object and its mirror image. Two objects or shapes are said to be congruent if they superimpose on each other. Their shape and dimensions are same. In case of geometric figures, line segments with same length are congruent and angles with same measure are congruent. Let’s see criteria of congruence of triangles with proof. CONGRUENCE OF TRIANGLES A  polygon  made of three line segments forming three angles is known as Triangle. Two triangles are said to be congruent if their sides have same length and angles have same measure. Thus two triangles can be superimposed side to side and angle to angle.   Congruent triangles are triangles having corresponding sides and angles equal. Congruence is denoted by the symbol ≅ .  They have same area and same perimeter. Congruence of triangles can be predicted without actually measuring the sides and angles. Different rules of congruence of triangle...
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Exponentiation

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Exponentiation   is a   mathematical   operation , written as   b n , involving two numbers, the   base   b   and the   exponent   n . When n   is a positive   integer , exponentiation corresponds to repeated   multiplication   of the base: that is,   b n   is the   product   of multiplying   n   bases: bn=b× ⋯ ×b ⏟ n{\displaystyle b^{n}=\underbrace {b\times \cdots \times b} _{n}} The exponent is usually shown as a   superscript   to the right of the base. In that case,   b n   is called   b raised to the n-th power , b raised to the power of n , or   the n-th power of b . When   n   is a positive integer and   b   is not zero,   b − n   is naturally defined as 1/ b n , preserving the property   b n  ×  b m  =  b n  +  m . With exponent −1,   b −1   is equal to 1/ b , and is the ...
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