Answer:
3
Step-by-step explanation:
P is the in-center
⇒PA=PE=PD because they are in-radius of the in-circle
We know that, tangent segments drawn from a point outside the circle are always equal in length
⇒DK=EK=7.2
In right triangle PKE,
using Pythagoras' Theorem : 
⇒
⇒
⇒
⇒
Therefore, 
As you know 30/45 = 6/9
So a = 9 makes the equation true
Answer:
14,800
Step-by-step explanation:
To find the volume of an object, simply multiply its hight, length, and width together.
16*25*37
16*25=400
400*37=14,800
The rectangular prism has a volume of 14,800.
Hope this helps!