Question

Can someone help me with this id like an explination

Answer 1

I'll do the first one, it's fairly self-explanatory: a = 73 degrees

Explanation:

Angles on a straight line add up to 180 degrees, so if we use a as an example... 180 - 107 = 73 degrees.

Answer 2

Linear pair:

If the non-common arms of two adjacent angles form a straight line, they are called linear pair and they are supplementary.

Exterior angles and its corresponding interior angle are linear pair.

a + 107 = 180

a = 180 - 107

`\boxed{\bf a = 73^\circ}`

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b + 119 = 180

b = 180 - 119

`\boxed{\bf b = 61^\circ}`

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c + 123 = 180

c = 180 - 123

`\boxed{\bf c = 57^\circ}`

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d + 118 = 180

d = 180 - 118

`\boxed{\bf d = 62^\circ}`

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e + 129 = 180

e = 180 - 129

`\boxed{\bf e = 51^\circ}`

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f + 124 = 180

f = 180 - 124

`\boxed{\bf f = 56^\circ}`

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