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STD IX – MENSURATION – ARCHIMEDES

About Course

In this section will learn the following chapters 1. AREA AND PERIMETER OF PLANE FIGURES 2. SOLIDS
Last Updated:July 13, 2024
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Description

AREA AND PERIMETER OF PLANE FIGURES

TRIANGLES

When Sides are given we use HERON’S FORMULA

  1. Perimeter = a + b + c
  2. semiperimeter = Perimeter/2
  3. Area = √s(s – a)(s – b) (s – c)

When height is given (or triangle is right angled)

  1. A = 1/2 x base x height
  2. Altitude of Isosceles triangle = √a2 – (b2/4)
  3. Altitude of an equilateral triangle = √3/2 a

SQUARE AND RECTANGLE

TRAPEZIUM

CIRCLE

Free
Free
Free access this course
  • Level
    Intermediate
  • Total Enrolled
    1
  • Duration
    10 hours
  • Last Updated
    July 13, 2024

Material Includes

  • 💻 Online recap of Lessons
  • 📒 Worksheet questions and solution
  • 📚 Testing and solution
  • TEACHING AIDS:
  • 🌺 Understanding of 2D and 3D figures using cardboard cut -out of mesh
  • 🌺 Explaination of concept of Volume and Surface area with sticky paper tiles arranged as tile on floor
  • 🌺Explanation of volume by method of cross section by deck of cards
  • 🌺chart paper cuttings of lawns, gardens and footpath and circular paths
  • 🌺Formula chart in class
Course Duration: 10h
Course level:Intermediate
Enrolled:1

About Course

In this section will learn the following chapters 1. AREA AND PERIMETER OF PLANE FIGURES 2. SOLIDS

Course Curriculum

AREA AND PERIMETER OF PLANE FIGURES – TRIANGLES AND QUADRILATERALS

  • [ONLINE] [RHEA] ARE AND PERIMETER OF A TRIANGLE – INTRODUCTION TO FORMULA
    18:22
  • [PHYSICAL] [JESISHA] SIMPLE NUMERICAL BASED ON AREA AND PERIMETER OF TRIANGLES
    06:11
  • [ONLINE] [VANASHREE] SIMPLE SUMS ON HERON’S FORMULA METHOD
    23:36
  • [PHYSICAL] [JESISHA] COST OF CULTIVATING TRIANGULA FIELDS
    11:09
  • [PHYSICAL] [JESISHA] AREA OF PERIMETER – FIND THE AREA OF TRIANGLE 2
    13:16
  • [PHYSICAL] [JESISHA] AREA OF PERIMETER – FIND THE AREA OF TRIANGLE
    10:15
  • [ONLINE] [VANASHREE] INTRODUCTION TO TRAPEZIUM, RHOMBUS AND TRIANGLES
    15:00
  • [PHYSICAL] [JESISHA] AREA AND PERIMETER – FIND AREA OF A QUADRILATERAL
    05:32
  • [PHYSICAL] [JESISHA] AREA AND PERIMETER – THE PERIMETER OF A RECTANGLE
    06:20
  • [PHYSICAL] [JESISHA] AREA AND PERIMETER – CALCULATE THE AREA OF QUADRILATERAL
    11:05
  • [PHYSICAL] [JESISHA] AREA AND PERIMETER – SUMS
    07:19
  • [PHYSICAL] [JESISHA] AREA AND PERIMETER – NUMERICALS – AREA OF TRAPEZIUM
    11:48
  • [PHYSICAL] [JESISHA] AREA AND PERIMETER – NUMERICALS – AREA AND PERIMETER AND FIND THE LENGTH
    08:34
  • [PHYSICAL] [RHEA] MENSURATION – PROPERTIES OF TRIANGLES AND QUADRILATERALS
    39:36
  • [PHYSICAL] [RHEA] MENSURATION – NUMERICALS BASED ON AREA AND PERIMETER OF A TRIANGLE
    31:19
  • [PHYSICAL] [RHEA] MENSURATION – NUMERICAL ON RECTANGLE AND PARALLELOGRAM
    21:49
  • [PHYSICAL] [RHEA] MENSURATION – NUMERICAL ON ISOSCELES TRAPEZIUM AND RIGHT ANGLED TRAPEZIUM
    13:20
  • [PHYSICAL] [RHEA] MENSURATION – NUMERICAL ON 16 TILE
    07:39
  • [PHYSICAL] [RHEA] MENSURATION – ROCKET BY DARSHIKA
    12:17

AREA AND PERIMETER OF PLANE FIGURES – HOTS PROBLEMS

MENSURATION – AREA AND CIRCUMFERENCE OF A CIRCLE

SOLIDS

VOLUME – CROSS SECTION METHOD

ADDITINAL MATERIAL

ASSIGNMENT AND DUE DATE

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