Prove the following: If, in a triangle \(ABC\), \(\angle BAO = \angle OAC = \angle 20^\circ \), \(\angle ACO= 10^\circ \) and \(\angle OCB = 30^\circ \), then \(\angle OBC = 80^\circ \). Try to use elementary geometry (Euclid's Elements).

Prove the following: If, in a triangle \(ABC\), \(\angle BAO = \angle OAC = \angle 20^\circ \), \(\angle ACO= 10^\circ \) and \(\angle OCB = 30^\circ \), then \(\angle OBC = 80^\circ \). Try to use elementary geometry (Euclid's Elements).

No vote yet

1 vote

×

Problem Loading...

Note Loading...

Set Loading...

## Comments

Sort by:

TopNewestLog in to reply

Maybe inspiration will come knocking at your head after you read this – Jason Snow · 4 months ago

Log in to reply