Question

Помогите даю 20 баллов

Answer 1

Ответ:

Объяснение:

1) 180° - 78° - 40° = 180° - 118° = 62°

2) ( 180° - 54° ) / 2 = 126° / 2 = 63°

3) 180° - 90° - 70° = 20°

4) ( 180° - 2 * 25° ) / 2 = 65°

5) x + 2x + 2x = 180 ; 5x = 180 ; x = 36 ; 2x = 72°

6) ( 180° - ( 180° - 100° ) ) / 2 = 50°

7) 9x + 7x + 4x = 180 ; 20x = 180 ; x = 9 ; 4x = 36°

8) 180° - 90° - 30° - 50° = 10°

9) ( 180° - ( 180° - 90°- 20°) ) / 2 = 55°

10) x + 2x + 60 = 180 ; 3x = 120 ; x = 40 ; 180° - 4 * 40° = 20°

Answer 2

1) 180° - 78° - 40° = 180° - 118° = 62°

2) ( 180° - 54° ) / 2 = 126° / 2 = 63°

3) 180° - 90° - 70° = 20°

4) ( 180° - 2 * 25° ) / 2 = 65°

5) x + 2x + 2x = 180 ; 5x = 180 ; x = 36 ; 2x = 72°

6) ( 180° - ( 180° - 100° ) ) / 2 = 50°

7) 9x + 7x + 4x = 180 ; 20x = 180 ; x = 9 ; 4x = 36°

8) 180° - 90° - 30° - 50° = 10°

9) ( 180° - ( 180° - 90°- 20°) ) / 2 = 55°

10) x + 2x + 60 = 180 ; 3x = 120 ; x = 40 ; 180° - 4 * 40° = 20°