Question

AB is a strait line
Work out the size of angle x

Answer 1

109

Explanation:

line AB is 180 degrees because a circle is 360 degrees and half a circle is 180 degrees.

Add 42 degrees and 29 degrees. 42+29 = 71

Then subtract. 180 - 71 = 109

So therefore
`x=109`

Hope this helps:)

Answer 2

109

Explanation:

AB = 180° ( straight line )

X = 180 - 42 - 29

= 138 - 29

= 109

Hope this helped :)