Q: How many lines does it take to connect every corner of a ten sided shape?

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Geometric shapes mean that the shape is just a basic shape, like for example, a trapazoid would be a geometric shape because of it continuous lines that connect at each corner.

A vertex (plural: vertices or vertexes) is the point of intersection of lines (like the 'corners' of a 3D shape). A corner is the same but where only two lines are intersecting.

Every shape that is round does not have edges. A shape that has sharp points and has straight lines can have edges.

Wich 3 D shape has a corner on it?

A teardrop shape?

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Geometric shapes mean that the shape is just a basic shape, like for example, a trapazoid would be a geometric shape because of it continuous lines that connect at each corner.

You connect the points that it has, corner to corner and count them. Moo

A vertex (plural: vertices or vertexes) is the point of intersection of lines (like the 'corners' of a 3D shape). A corner is the same but where only two lines are intersecting.

Contour lines connect points with the same elevation or altitude. These lines are used on maps to help visualize the shape and elevation of the terrain.

Connect five lines together

draw an octagon then erase one corner and connect it

Any shape with two lines meeting at an angle.

Contour lines connect points with the same elevation or value, showing the shape and elevation of the land on a map.

yes, other wise it would just be a line... If it connects then it is a shape, can you imagine a triangle with 2 lines and then there is an empty space? That is not a shape, it is 2 lines. Understand?

Trace from each corner to each other corner that it is not directly connected to. count the number of lines within the shape.

Simplify the problem a bit. You have 20 dots and you want to connect pairs of dots, so you're looking for how many unique sets of 2 objects you can choose from 20 distinct objects. Thus you have 20[[Choose]]2 = 20!/(18!2!) = 10*19 = 190 such sets, which correspond to 190 distinct lines. However, there are 20 lines connecting the edges of the 20-sided shape, so we actually have 190 - 20 = 170 lines not corresponding to edges.

There are infinitely many lines of symmetry. Every line can be a line of symmetry for a suitable shape.