Question

In ∆ABC, if ∠ = 85° and ∠ = 75° , then ∠ =………….

A. 30° B. 20° C. 50 ° D. 75°​

Answer 1

Answer:

Step-by-step explanation:

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

Answer:

20

Step-by-step explanation:

the sum of triangle's all angle is 180°

1. 85° +75° =160°
2. 180°-160° =20°

hope you understand