Answer:
The correct option is 1. The dimensions of one of the identical triangular pieces of the plane are 2 cm base and 3 cm height.
Step-by-step explanation:
From the given figure it is noticed that the length of parallel sides of the trapezoid are 6 cm and 2 cm.
The height of triangular pieces is same as the height of trapezoid. So the height of triangular pieces is 3 cm.
Let the measure of base of the triangular pieces be x.
[tex]x+2+x=6[/tex]
Combine like terms.
[tex]2x+2=6[/tex]
Subtract 2 form both the sides.
[tex]2x+2-2=6-2[/tex]
[tex]2x=4[/tex]
Divide both sides by 2.
[tex]x=\frac{4}{2}[/tex]
[tex]x=2[/tex]
The base of the triangles is 2 cm.
The dimensions of one of the identical triangular pieces of the plane are 2 cm base and 3 cm height. Therefore the correct option is 1.
