One answer is triangle
3D = Pyramid 2D = Triangle
2d triangle square rectagle pentagon hexagon
A right angle triangle
If you look down from the top, it is circular. From the bottom, it is circular. From the side, it is a triangle.
it a triangle as a 2d shape
A triangle as no other 2d shape can have 3 sides.
a triangle
a triangle
A triangle
Yes because a triangle is a 2D shape whereas a triangle prism is a 3D shape
One answer is triangle
equilateral square or triangle
3D = Pyramid 2D = Triangle
3D = Pyramid 2D = Triangle
Triangle & trapezium
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