- Explainhow you knowthat the trianglesyou namedin exercise1 are similar.
- Write a true proportion.
- Nametwo trianglesthat mightnotbe similar.
- If , , and , whatis the lengthof?
- Giventhat , , and in the diagrambelow
Write an expressionfor in termsof.
- Provethe followingtheorem:
If an acuteangleof a right triangleis congruentto an acuteangleof anotherright triangle,then the triangles
are congruent.
Write a flow proof.
Use the followingdiagramfor exercises8-12.
In a geometryrealitycompetition,the teamsmustestimatethe widthof the river shownin the diagram.
Here’s whatthey did.
- Anna,Bela,and Carlosstayedon the upperbankof the river.
- Darryland Eva paddledacrossto the lowerbankof the river.