Question

a) Linear pair angles are also i. Supplementary angles iii. vertically opposite angles ii. complementary angles iv. none of the above​

Answer 1

Step-by-step explanation:

We use the geometry concepts like supplementary angles, vertically opposite angles and adjacent angles to solve the problem.

(i) Obtuse vertically opposite angles mean angles greater than 90°and form a pair of vertically opposite angles. So, the angles are ∠AOD and ∠BOC.

(ii) Adjacent complementary angles are those angle that have one common vertex and one common arm, non - common arms are on either sides of the common arm and their sum is equal to 90°. ∠EOA and ∠AOB are adjacent complementary angles.

(iii) Equal supplementary angles have a sum of angles 180° and supplementary angles are equal. ∠EOB and ∠EOD are equal supplementary angles.

(iv) Unequal supplementary angles have a sum of angles 180° and supplementary angles are unequal. ∠EOA and ∠EOC form a pair of unequal supplementary angles.

(v) Adjacent angles that do not form a linear pair. (Linear pairs are adjacent angles whose sum is equal to 180o). ∠AOB and ∠AOE; ∠AOE and ∠EOD; ∠EOD and ∠COD are such

Answer 2

Answer:

(i.) supplementary angle, as 90+90 = 180