1.

5. From the given figures, find the value of x.(3x + 8°)(2x -33°)110x69

Answer»

i)

AOB is straight line so sum of angles will be 180°.

3x + 8 + 2x - 33 = 180°

5x - 25 = 180°

5x = 180° + 25° = 205°

x = 41°

ii)Total sum of angle is 360°So,

110° + 51° + 69° + x = 360°

x + 230° = 360°

x = 360° - 230°

x = 130°



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