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

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Types of sets - I

Representation of Sets

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Other Members of Solar System

Artificial Satellites and their Uses

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Chemistry

Preparation, Properties and Uses of Hydrogen

Flame

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Transportation in Animals

Blood Groups

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The Celestial Bodies

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The Expansion of the Maratha Power - 1

The Expansion of the Maratha Kingdom Under Bajirao I

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Civics

Globalization - Introduction

Role of the UN in Preserving World Peace

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English Grammar

Simple and Compound Sentences

Complex Sentences

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Comprehension - Tips to Remember

Diary Entry - Introduction and Format

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  • Electric Fuse

    Q

    Electrical fuse is a safety device which is attached to an electrical circuit which prevents from its damage.
    It is made up of low melting substance,when high current flows through the circuit , it melts down and break the circuit.Hence, prevent the device from getting damaged.

    A
  • Volume and Surface Area of Solids

    Q

    TSA of cuboid = LSA + 2 × area of base = 368 sq.m + 16 sq.m = 384 sq.m

    A
  • Volume and Surface Area of Solids

    Q

    Let the ratio of radius = 3x and 5x.
    and the ratio of height = 2y and 3y
    since, CSA of cylinder = 2∏rh
    so, ratio of CSA = (3x × 2y) : (5x × 3y) = 6 : 15 = 2 : 5

    A
  • Volume and Surface Area of Solids

    Q

    TSA of cuboid = LSA + 2 × area of base = 368 sq.m + 16 sq.m = 384 sq.m

    A
  • Exponents

    Q

    Kindly complete the question

    A
  • Vocabulary

    Q

    A
  • Time and Work

    Q

    2. 1/6 + 1/8 + 1/12 = 9/24
    So total they will take 24/9 hours to complete

    A
  • Time and Work

    Q

    4 men can do a job in 6 days.
    1 man can do the job in 24 days.
    3 men can do the job in (24/3) days = 8 day.
    3 men can do the double of the job in (8*2) = �16 days.

    A
  • Lines and Angles

    Q

    Let assume that angle is x° the complementry angle = (90-x)°
    now according to question
    x - (90 -x) = 36
    2x - 90 = 36
    2x = 90 + 36 = 126
    x = 63°
    that angle is 63°

    A

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