Please help only these questions whoever answers them correctly gets marked brainliest

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Step-by-step explanation:

1. The sum of all angles in a triangle is 180°

75° + 60° + x° = 180°

135° + x° = 180°

x° = 55°

2. The sum of all angles in a triangle is 180°

70° + 70° + x° = 180°

140° + x° = 180°

x = 40°

3. The sum of all angles in a triangle is 180°

1 : 2: 5 = 1x:2x:5x

1x + 2x + 5x = 180°

8x = 180°

x = 22.5°

2x = 45°

5x = 112.5°

4. The sum of all angles in a triangle is 180°. The angle in a line is 180°

Missing angle is 180° - 123° = 57°

The sum of angles in a triangle is 180°

57* + x° + 90* = 180°

57° + x° = 90°

x = 33°

5. We know that the sum of angles in a triangle is 180°. We can subtract the values of the two other angles from 180* to find the missing angle.

-Chetan K

3 1/3 x 2 3/5 = 8 2/3

step-by-step explanation:

just multiply the first number by the second number to get your answer.