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Basic Geometrical Ideas You last learnt Geometry , this is up next

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Algebra Algebra Algebra AlgebraAlgebra

30 Minutes

You last learnt Geometry , now practice what you learnt

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Maths

Rational Numbers between Two Rational Numbers

Properties of Rational Number

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Science

Agriculture

Crop Protection

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Geography

Human-Made and Human Resources

Conservation of Resources

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History

Importance of Dates

How do we Periodise

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Civics

The Indian Constitution

Secularism

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English Grammar

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Sentences - Introduction

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English Writing Skills

Comprehension - Tips to Remember

Diary Entry - Introduction and Format

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10 activities per class

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Attempt questions & share knowledge

  • Square and Square Roots

    Q

    Largest straight line is the diagonal of the rectangle.
    Length of diagonal = √[24² + 18²] = √[576 + 324] = √900 = 30 m

    A
  • Square and Square Roots

    Q

    79380 = 2 × 2 × 3 × 3 × 3 × 3 × 5 × 7 × 7
    so, the least whole number = 5
    √(79380 × 5) = 2 × 9 × 5 × 7 = 630

    A
  • Comparing Quantities

    Q

    Let the total no. of students in class be x.
    18% of x = 18
    (18/100) of x = 18
    so, x = 100

    A
  • Weavers and Iron smelters

    Q

    Import of steel bars from Britain gradually led to decline in the 19th century. The new forest laws were also responsible for this because finding wood and charcoal was becoming more difficult. Thus New forest laws also restricted the smelters’ access to iron ore mines.
    By the
    turn of the 19th century, as the cotton industry developed in England, Indian cotton weavers faced two problems - their export market collapsed and local market shrank being flooded with British goods. Unfortunately, Indian handmade goods could not compete with fine machine-made goods of Britain. They could not get sufficient supply of raw cotton which was sent to England for their industries after American world war. The prices of raw cotton shot up and Indian
    weavers were forced to buy raw cotton at higher prices. In most
    cases they were unable to pay.
    By the end of 19th century, Indian weavers again got a setback when textile factories were set up in India flooding market with
    machine-made goods.

    A
  • Algebraic Expression

    Q

    (x + y – 2z)(x + y – 2z)
    = (x + y – 2z)2
    = x2 + y2 + 4z2 + 2xy – 4yz – 4xz

    A
  • Fermentation

    Q

    Fermentation helps in bakery products and making beverages like wine and alcohol. Moreover, it is used in making curd and idli. Hence, fermentation is important in daily life.

    A
  • Plant Cell

    Q

    Though plants and animals are higher living organisms, only plant cells possess cell walls and not the animal cells because of following reasons :
    (a)Plants are the forms which cannot move from one place to another in order to escape extreme climatic conditions.
    (b)They have to withstand strong winds during storm.
    (c)They have to withstand heavy rainfall during monsoons.
    (d)They are prone to many seasonal diseases. They have to be resistant against them.
    (e)They have to prevent themselves from scorching sun. Cell walls prevent or delay dehydration of the cell.

    A
  • Data Handling

    Q

    Yes, its according to your convinience

    A
  • Force and Pressure

    Q

    Weight = mass × g = volume × density ×g = 45 ×2.4/1000 ×9.8 = 1.058N

    A
  • Judiciary

    Q

    The judiciary in India is an independent body that plays a critical role in the functioning of the country. It is important because it can make or break decisions without the interference of the government including the legislature and the executive.

    A

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