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Help i’ll give 5stars!

These two polygons are similar.
4
2
3
y
9
6
15
y = [?]

Help i’ll give 5stars! These two polygons are similar. 4 2 3 y 9 6 15 y = [?]-example-1
User SaWo
by
5.5k points

1 Answer

1 vote

The two polygons are similar, which means there is a scale factor common to all five sides. That is, there is a factor by which you multiply the side in the red polygon which results in the corresponding side on the yellow polygon.

Observe that the side labelled 2 in the red polygon corresponds to that labelled 6 in the yellow polygon.

This means the red side is multiplied by 3 to derive the yellow side.

The side labelled y corresponds to the side labelled 15. This means;


\begin{gathered} y*3=15 \\ y=(15)/(3) \\ y=5 \end{gathered}

User WurmD
by
5.2k points