Skip to main content

THE MAGIC OF NATURE POEM WRITTEN BY SAFALYA PAL

THE MAGIC OF NATURE THE MAGIC OF NATURE OUR WONDER DOES GROW THE SECRETS OF NATURE ARE NOT FOR THE HUMANS TO KNOW THE MAGIC OF NATURE IS FOR ALL TO SEE IT IS ALL AROUND YOU AND ALL AROUND ME THE BEUTIFUL SCENIC VIEW EVERYTHING SEEMS AWESOME AND NEW LOOKING AT THE AWESOME SIGHT YOU FEEL SO TRANQUIL AND DELIGHT THINK HOW THE LUSH FORESTS ALWAYS REMAIN GREEN THINK WHY THE WATER DOESN’T ACCOMPLISH THINK HOW THE NORTHERN LIGHTS ESTABLISH THINK FROM WHERE DO WE GET NATURAL THINGS WE GET ALL THESE FROM THE NATURE AND THOSE ARE POSSIBLE FOR NATURE’S MAGIC! THE NATURAL BEAUTY OF NATURE HAS SO MUCH TO SAY, THE BEAUTIFUL CROSSROADS AND LONG WAY, THE NATURE HAS ITS CHARM, KEEP IT SAFE AND DO NOT HARM, THE NATURE WILL KEEP US UNSAFE, IF WE DON'T KEEP IT SAFE!                                          ...
Post a Comment

Mensuration, NCERT NOTES, Class 6

 

Mensuration

Introduction to Mensuration

Mensuration

  • Mensuration is the branch of mathematics that deals with the measurement of length, area or volume of various geometric shapes.

Shapes

  • A shape is the form of an object.
  • Examples of two-dimensional shapes are square, rectangle and triangle, and of three-dimensional shapes are cube, cuboid and sphere.

Perimeter

Perimeter

  • Perimeter is the total length or total distance covered along the boundary of a closed shape.
           
  • Perimeter of a circle is also called as the circumference of the circle.
        

Perimeter of a Triangle

            
  • Perimeter of triangle = Sum of lengths of all sides = a + b + c.
  • If the given triangle is equilateral that is if all the sides are equal (a  = b = c), then its perimeter is equal to 3 × length of one side of the triangle.

Perimeter of a Rectangle

          
  • Perimeter of the rectangle = length ( l ) + length ( l ) + width (w) + width (w)
                                                = 2× [length ( l ) + width (w)]

Perimeter of a Square

         
  • Perimeter of square =  4 × length of a side = 4a 

Perimeter of a 'n' sided polygon

  • A polygon is a closed shape made up of line segments.
  • Perimeter of n sided polygon = n × length of one side.
  • Example: Length of each side of a hexagon is a cm, then:
    Perimeter of the hexagon = 6a cm

Perimeter of irregular shapes

  • Irregular shapes are the shapes which do not have all sides and angles equal.
  • The perimeter of irregular shapes is equal to total length covered by the shape.
    In the figure given below, perimeter is the sum of all sides.

Area

Area

  • Area is the total amount of surface enclosed by a closed figure.

Area of Square

  • Area of a square = Side × Side =Side2=a2, where a is the length of each side.

Area of Rectangle

  •  Area = length ( l ) × breadth ( b)

Area of a triangle

 
  • Area of triangle =12×base×height=12×b×h
 

Areas of different types of triangles

  • Consider an acute and an obtuse triangle.
    Area of each triangle =12×base×height=12×b×h

Visualisation of Area

  • In the given graph, if area of each small square is 1 cm2, then
    Area of rectangle =l×b=5×2=10 cm2
    Area of square =a×a=2×2=4 cm2

Area of irregular shapes

  • Area of an irregular figure can be calculated :
    Step 1: Divide the irregular shape into regular shapes that you can recognize (eg. triangles, rectangles, circles and squares)
    Step 2: Find the area of these individual shapes and add them. Sum will be the area of the irregular figure.
     
  • Example: Area of the given figure = Area of MNCB + Area of AMGH + Area of EFND 
                                                          = [ 5 × 9 + 4 × 2 + 3 × 3 ] cm2 
                                                          = [45 + 8 + 9 ] cm2 
                                                          =62 cm2
Labels:

Comments

Post a Comment

Popular posts from this blog

Introduction to plants

  Introduction to plants Plants are all around us. They help sustain life on earth by creating food and giving out oxygen that we breathe in. Plants Plants are the immovable living organisms all around us. They are the primary food providers. They are mostly green in colour and use sun as the source of energy to make food. Herbs, shrubs and trees Herbs are the smallest plants and do not have woody stem. Shrubs are slightly larger than herbs. Trees are the largest plants and can have large and thick woody stem. Creepers and climbers Creepers and Climbers are types of plants that need support to grow. Algae and mosses Algae and mosses are the most primitive or simple plants. Algae are found mostly floating on water and mosses are seen on surfaces, rocks or bark of trees in humid conditions.
Post a Comment
Read more

Decoding India’s First-of-its-Kind DNA Vaccine

  Decoding India’s First-of-its-Kind DNA Vaccine Since the outbreak of COVID-19, we have witnessed two waves of this pandemic that have caused havoc. While our brave frontline workers continue to endlessly help people infected with the virus, our scientists and medical professionals are looking for the best possible ways to prevent this virus from causing further harm. These experts studied different vaccines and tried and tested them in labs before moving forward with clinical trials in humans. Initially, it seemed like a distant dream, but now they are not only being able to produce mass vaccines in a brief period but also developing different types and versions. And one such latest variant is the   ZyCoV-D , the world’s first DNA vaccine produced by India. Structure of SARS CoV- 2 or Covid- 19 Viruses come in different shapes and size essentially they are packages of DNA or RNA inside a protein cell. Talking about the SARS CoV-2, the outermost layer is the viral envelope...
Post a Comment
Read more

Components of Food, NCERT NOTES, Class 6

  Components of Food What Do Different Food Items Contain? Food Food is the basic requirement for all living organisms. It provides energy for carrying out the normal physiological activities. Components of Food Different components have different nutrients. They all come together to provide wholesome nourishment to us. E.g. Rotis and rice contain predominantly carbohydrates. Dal, eggs, meat etc contain proteins. Oil, ghee contain fat. Sources of Carbohydrates, Proteins, Vitamins & Minerals and Fats  (Clockwise, from the left upper corner) What Do Various Nutrients Do for Our Body? Carbohydrates Carbohydrates are present mostly as starch. They provide us energy and are thus energy giving food. Wheat, Potato, Rice etc. are good sources of carbohydrates. Carbohydrates present in any food item are tested by Iodine test. Few drops of dilute iodine solution are added to the sample food item. If the colour changes from brown to blue-black, the prese...
Post a Comment
Read more