Answer:
256√3 in^2.
Step-by-step explanation:
tan 60 = lateral height of 1 face / 8
Lateral height = 8 tan 60 = 8√3
Area of 1 face = 8 * 8√3 = 64√3
Lateral Area = 4 * 64√3 = 256√3 in^2
AB/DE = BC/EF
CA/FD = AB/DE
MJ/QN = JK/QP
LM/PQ = MJ/OP
Answer:
vol of cylinder = per. of base x height + 2 (area of base)
area of base = pi x r^2
4pi = pi r^2
4=r^2
r=2
per of base = 2 x pi x r
2xpix2=4pi (same as area cause 2x2 and 2^2 is the same thing)
4pi + 2(4pi)
4pi + 8pi
<u>12pi = volume</u>
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<u>hope that answers your question</u>
<u>Don't hesitate to comment if you are confused about something</u>
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
20^2-12^2=256
400-144=256
sqrt 256 = 16
