Find a in the diagram below, giving all reasons.

Could someone please help me with this question. I have no idea where to start!

Thanks.

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- April 23rd 2008, 05:36 PMstellina_91Angle Help Please
Find a in the diagram below, giving all reasons.

Could someone please help me with this question. I have no idea where to start!

Thanks. - April 23rd 2008, 10:02 PMSoroban
Hello, stellina_91!

I assume that is a straight line.

In is an exterior angle.

. . Hence: .

In is an exterior angle.

. . Hence: .

In

- April 24th 2008, 10:25 AMgdbaillargeon