Question

The two prisms below are similar. What is the value of x? A. 30 B. 1 C. 9 D. 3

Answer 1

Answer:

D. 3

Step-by-step explanation:

If the prisms are said to the similar, that means that the ratio/relation between their corresponding sides have to equal, so

$\frac{x}{1} = \frac{9}{3} = \frac{30}{10}$

We can easily use the part x/1 = 9/3 to make a cross-multiplication that would give us:

x = (1 * 9) / 3 = 9/3 = 3

So, the green prism is a dilated version of the blue one by a dilation/scale factor of 3.

Answer 2

I believe it's D - 3....