SOLUTION: I'm not exactly sure what this question is asking me: Identify a physical model for each of the following: a. perpendicular lines b. an acute angle c. an obtuse angle Ca

Question 34005: I'm not exactly sure what this question is asking me:
Identify a physical model for each of the following:
a. perpendicular lines
b. an acute angle
c. an obtuse angle
Can you explain this?
Found 2 solutions by longjonsilver, venugopalramana:
Answer by longjonsilver(2297) (Show Source): You can put this solution on YOUR website!
Perpendicular lines: The steel construction of a building has perpendicular lines.

Acute angle: the steel construction within an electricity pylon. The steel bars are connected together with cross members that form acute angles.

Obtuse angle: the working of the forearm or calf. Both operate with obtuse (as well as acute) angles made with the upper arm and thigh, respectively

jon.

Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
THE CORNER LINE BETWEEN 2 WALLS OF A ROOM FROM FLOOR TO ROOF IS PERPENDICULAR TO FLOOR LINE ALONG ANY OF THE WALLS.
WHEN YOU PUSH OPEN A DOOR IT MAKES AN ACUTE ANGLE WITH THE DOOR HINGE AT THE BEGINING AND INALLY MAKES 90 DEGREES OR A SLIGHTLY OBTUSE ANGLE WITH THE HINGE WHEN IT IS FULLY OPENED AND TOUCHES THE NEIGHBOURING WALL.
SAME THING HAPPENS WHEN YOU OPEN A BOOK TO READ..WE HAVE AN ACUTE ANGLE BETWEEN THE PAGES TO START WITH AND NORMALLY IN THE END IN THE REAING POSITION THE ANGLE IS OBTUSE BETWEEN THE PAGES.
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