Answer:
3
inches long
Step-by-step explanation:
Find how long the paper will be by dividing 11 by 3. This will find how much 1/3 of the 11 inch paper is.
11/3
= 3 
So, if she cuts the paper, the paper will be 3
inches long
E) sqrt(30)
This is a nice problem. It was helpful to read the topic at the top.
Notice that the two right triangles are similar. Their sides are in proportion.
That is the side '3' is what 'x' is in the other triangle (you need to rotate it!)
Then 'x' is similar to '10'
3/x=x/10 ---> x^2=30, x=sqrt(30)
If you are patient, you can check that for sqrt(30) pythagoras theorem works for all the triangles.
Best
Then
A. 8
QRP
QPT
TPS
TRS
SPR
STP
QTS
QRS
Volume of first prism = 120 x 12 = 1,440 cubic feet
Volume of second prism = 84 x 6 x 16 = 8,064 cubic feet
The volume of the second prism is more than that of the first.