36 of them did not have an umbrella because out of 11 people, 4 did not bring an umbrella.
Step-by-step explanation:
Area of the octagon = 2(1+√2)8=309.02 units
when people say " in lowest terms" they usually mean like the simplified version of an answer
an example of this would be like
make
into lowest terms
the answer would be 
if you dont understand comment on this and ill try to break it down more
B. Angle B= Angle E
As this would only prove the AAA Similarity theorem, but not any Congruence Rule
60x24=1440 1440x365=525600 525600x2000=1,051,200,000 about 2000 years