Question

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Answer 1

Answer:

angle p=75°

angle q=30°

therefore,

angle p+angle q+angle r = 180° (sum of 3 angles of a triangle)

so, 75°+30°+r=180°

so, 105°+r=180°

so, r=180°-105°

so, r=75°

Step-by-step explanation:

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Answer 2

Answer :-

∆PQR ,

angle P = 75°

angle Q = 30°

angle R = 180° - (75°+30°)

= 180° - 105°

= 75°

See the attachment