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What is the vertex in a square?
there are 4 vertices(singular vertex) of a square. the pointed edges are called vertex
What is a vertex in math terms?
a vertex is the place where two lines meet.
What is a angle that shares a vertex and a side?
An angle cannot "share" a vertex and a side.
What is the sum of the measurement of the angles around the vertex point of tessellation?
The sum of the angles around a vertex point in a plane will always be 360o. Picture a bicycle wheel with all its spokes radiating out from the hub. Now pick two spokes to form a vertex. Find the angle of your vertex, and then subtract it from 360o. As there are 360o in a circle, and your figure (the vertex) is a slice of the circle, its angle plus all the rest of the arc about the vertex will sum to 360o. If you've discovered the angle of your vertex, you cannot help but find the sum of the rest of the angles (if there are more than one) around your vertex.
When a parabola opens upward the y coordinate of the vertex is a what?
Opening up, the vertex is a minimum.
