Question

HI

Answer 1

By looking at the figure, we see 2 triangles with some lengths marked.
The side that measures 10 cm corresponds to which side in the other triangle?

Answer 2

Great.
The side of 14 cm corresponds to which side in the other triangle?

Answer 3

Yes. That's good.

We have 10 cm corresponds to 22 cm
and 14 cm corresponds to x

The lengths of the sides of similar triangles are in proportion.
That means we can write a proportion with these lengths:

10 is to 22 as 14 is to x

\( \dfrac{10}{22} = \dfrac{14}{x} \)

Now we can use cross multiplication to find x.

Answer 4

Use cross multiplication.