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In the adjoining figure, name the following pairs of angles: (i) Obtuse vertically opposite angles. (ii) Adjacent complementary angles. (iii) Equal supplementary angles. (iv) Unequal supplementary angles. (v) Adjacent angles that do not form a linear pair.

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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: 14

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  1. (i) Obtuse vertically opposite angles means greater than 90° and equal
    ∠AOD = ∠BOC.
    (ii) Adjacent complementary angles means angles have common vertex,
    common arm, non-common arms are on either side of common arm and
    sum of angles is 90° .
    (iii) Equal supplementary angles means sum of angles is 180° and supplement
    angles are equal.
    (iv) Unequal supplementary angles means sum of angles is 180° and
    supplement angles are unequal.
    i.e., ∠AOE, ∠EOC; ∠AOD, ∠DOC and ∠AOB, ∠BOC
    (v) Adjacent angles that do not form a linear pair mean, angles have common
    ray but the angles in a linear pair are not supplementary.
    i.e., ∠AOB, ∠AOE; ∠AOE, ∠EOD and ∠EOD, ∠COD

    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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