It would help if there were more information on "this 3-D figure". In view of the available information, the only possible answer is "That one!"
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triangle * * * * * What? Two lines can make an angle, but how can they make a triangle?
A net.A 2-dimensional pattern that you can fold to make a 3-dimensional figure is called a net.For instance, make a letter 'T' out of 6 squares. The vertical part of the T has 4 squares, and the horizontal part has 3 squares (one square is common to both) . This net can be folded to make a cube.
To create an equilateral pentagon with exaclty 1 right angle, you must # Create a dotted line of symmetry down the page. # Then create two lines that are exactly 3cm in length so that they form a right angle. This right angle must have exaclty 45o of it on each side of the dotted line. # Off these newly created lines extend another two lines of exactly 3cm so that the angles created are exaclty 120o each # Now draw a straight line through the dotted line of symmetry to connect the second set of 3cm lines together # The newly created pentagon should look like a house, that widens as it comes up to the roof and then comes into a point at the top. To insure that the pentagon is correct - Add all angles together and make sure that they equal 540o - Measure each line so that they are all exaclty 3cm - Make sure that the angles are as follows, 105-120-90-120-105 - You have now created a SERP - an equilateral pentagon that has a line of symmetry and in this case one right angle.
1.028"
No it makes the figure bigger or smaller than the original