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An angle is greater than 45°. Is its complementary angle greater than 45° or equal to 45° or less than 45°?

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NCERT Solutions for Class 7 Mathematics Chapter 5
Important NCERT Questions
Class vii Math Chapter 5 Lines and Angles Exercise 5.1
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 8

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1 Answer

  1. Let the complementary angles be x and y, i.e., x + y = 90°
    It is given that x > 45°
    Adding y both sides, x + y > 45° + y
    ⇒ 90° > 45° + y
    ⇒ 90° – 45° > y
    ⇒ y < 45°
    Thus, its complementary angle is less than 45° .

    Class 7 Maths Chapter 5 Exercise 5.1

    for more answers vist to:
    https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-5/

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