I believe the answer is D
if you fold it all together using the dotted line, it looks that it will all fit together and look like the above shape
hope this helps
Answer:
1:23
Step-by-step explanation:
20 / 460
= 1 / 23
= 1:23
A=h(b+c)
A/h=b+c
b=(A/h)-c
Answer: b=(A/h)-c
