Question

(B) If angle A = 140° then angleF =
(i) 50
(iii) 40
(ii) 30
(iv) 20
C​

Answer 1

Two angles which have a common vertex, a common arm and separate interiors are said to be adjacent angles.

The pairs of adjacent angles are given below:

∠ANB and ∠BNC,

∠BNC and ∠ANC,

∠ANC and ∠ANB,

∠PQR and ∠PQT

Answer 2

OPTION (C)

IS CORRECT

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