the diagram shows two contruent regular polygons joined together work out the number of sides of each polygon

Since we have given that

Measure of exterior angles = 72°

We need to find the number of sides of polygon.

As we know the formula for "Number of sides of polygon".

Number of sides is given by

\begin{gathered}\frac{360^\circ}{72^\circ}=5\end{gathered}

72

∘

360

∘

=5

Step-by-step explanation:

Since we have given that

Measure of exterior angles = 72°

We need to find the number of sides of polygon.

As we know the formula for "Number of sides of polygon".

Number of sides is given by

\begin{gathered}\frac{360^\circ}{72^\circ}=5\end{gathered}

72

∘

360

∘

=5

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b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2