The speaker is the encoder. That is the correct answer B.
2 would be the correct answer:)
Answer:
AC=42
EB=21
BC=26
thats all i know, sorry hope u figure it out
Step-by-step explanation:
Answer:
Option C. 
Step-by-step explanation:
we know that
The surface area of the triangular prism using the net is equal to the area of two triangles plus the area of three rectangles
so


