Question

7.

Answer 1

Answer:

Choice B

Step-by-step explanation:

When two shapes are similar their sides are always going to be proportional. So here we will set up a proportion to solve this.

$\frac{23}{40}=\frac{x}{17}$

Now we cross multiply

$391=40x$

After we got an equation we solve it

$x=9.775$

Since we got a decimal we will have to round it to the place they instruct for us, on this one it is 9.8 cm so it is choice b.