Answer:
C
Step-by-step explanation:
do that with pithagoras:
20² + 4,5² = x²
400 + 20,25 = x²
420,25 = x²
x = 
x ~ 20,5
Letter C: 20,5 feet
Yes all cubes are similar but their measurement is not similar
Answer: 8/4
Step-by-step explanation: if I’m wrong just watch the video for a hint it helps
Answer:
"like terms"
Step-by-step explanation:
It looks like you're asking for the word or phrase that has the meaning you have given. Such terms are called <em>like terms</em>.
8 x 64
=64 x 2 x 4
=128 x 2 x 2
=256 x 2
=512