When constructing inscribed polygons and parallel lines, how are the steps different?
a protractor is used to take measurements
four right angles are created.
a compass is used to copy an angle.
there are no differences.

When you construct parallel lines you have to copy an angle by creating arcs with a compass. For inscribed polygons you also have to use a compass in order to be sure that the figure is a regular polygon. There for the when you are constructing inscribed polygons and parallel lines, A compass is used to draw arcs.

C) A compass is used to copy an angle.

I hope it helps, Regards.

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solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b