Question

who will give me right answer I will mark them as a brainlist​

Answer 1

Answer:

AA similarity criteria

Step-by-step explanation:

in triangle ABC and triangle PQR

angle B = angle Q

angle C =angle R

thus triangles are similar by AA rule

Answer 2

Answer:

     ∠BAC = 90°

Step-by-step explanation:

ABC is a triangle

So, ∠ABC + ∠ACB + ∠BAC = 180°

     60° + 30° + ∠BAC = 180°

     90° + ∠BAC = 180°

     ∠BAC = 180° - 90°

     ∠BAC = 90°