Question

29. in figure, if lines I and mare parallel, thenx=
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Answer 1

Check the attachment to know the names of angles.

Solution

65° + y = 180 °. (Adjacent side)

=> y = 180 - 65

=> Y = 115 °

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Angle y = angle z. (opposite sides are equal)

In the triangle

Sum of interior angle = 180°

20° + 115° + x =180

X = 180 - 135°

=> x = Check the attachment to know the names of angles.

Solution

65° + y = 180 °. (Adjacent side)

=> y = 180 - 65

=> Y = 115 °

Angle y = angle z. (opposite sides are equal)

In the triangle

Sum of interior angle = 180°

20° + 115° + x =180

X = 180 - 135°

=> x = 45°

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Answer 2

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