Find the value of x, if it is given that lines AB and CD are parallel to each other.

40 $^{\circ}$

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140 $^{\circ}$

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160 $^{\circ}$

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80 $^{\circ}$

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Solution

The correct option is B
140 $^{\circ}$

$∠$ KMA= $40^{\circ}$ (given)

As $∠$ KMB and $∠$ KMA form a linear pair, they are supplementary angles.
So, we have, $∠$ KMB = $140^{\circ}$

$∠$ KMB = $∠$ MND (corresponding angles)

$∠$ MND = $140^{\circ}$

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Find the value of x, if it is given that lines AB and CD are parallel to each other.

The correct option is B 140∘ ∠KMA= 40∘ (given) As ∠KMB and ∠KMA form a linear pair, they are supplementary angles. So, we have, ∠KMB = 140∘ ∠KMB = ∠MND (corresponding angles) ∠MND = 140∘

The correct option is B
140 $^{\circ}$

$∠$ KMA= $40^{\circ}$ (given)

As $∠$ KMB and $∠$ KMA form a linear pair, they are supplementary angles.
So, we have, $∠$ KMB = $140^{\circ}$

$∠$ KMB = $∠$ MND (corresponding angles)

$∠$ MND = $140^{\circ}$