By Edward Wroten and Olivia Major

•This is a Tree that has grown a right angle trunk

1 2

Angle one plus angle two equals 180 degrees

Ray BD Bisects line ABC into to angle ABD and angle DBC

Angle one is a acute angle because the degree is less then 90

Angle one and two are vertical angles because the both share a vertex and are equal and are the same angle, but are not adjacent because they do not share slides

Points A and B create a strait line

The tree trunk and the ground create a 90 degree angle and the bush between them creates anther angle . So if you add angle one and two together you will get 90

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