The blueprint for a new house includes a triangular shaped room in the attic. The triangular room appears on the blueprint as shown. If the blueprint was made using a scale factor of 12 centimeter = 1 meter, what is the actual perimeter of the triangular room? 2.5 meters 2 point 5 meters 4.5 meters 4 point 5 meters 9 meters 9 meters 18 meters

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.