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

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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) About Me  (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) About Me  (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.