Explanation:
Angles 1 & 2 have to equal 180. So, if ∠1 is equal to 140, ∠2 is equal to 40 because 140 + 40 = 180.
So far... we know that:
Angles 2, 9, and 11 make a triangle, a triangles "magic number" is also 180. To get 180, you must add up all of the angles. Well... we don't know ∠11 so to find it, you subtract 40 & 80 from 180. 180 - 80 - 40 = 60.
Answer:
∠2 = 40
∠11 = 60
The answer is 20%
If 50 is your 100%, take 100 and 90 for example it would be obvious that is it 10% off, so with 50 since it is half of 100 you double the 10% which will be 20%. :)
You gotta do BEDMAS
B - well, there aren't any brackets in this equation
E - no exponents either
D - division...YES
-5/5/6 is going to be one half
3/2/3 is going to be the other
and of course, at the end, we're going to add the answers up together
because -5/5/6 are all in one big division equation, you have to calculate that first
similarly, because 3/2/3 is one big divison equation, you have to calculate that first too
and since there's no M (from BEDMAS), we move on to addition, where we take the answers of -5/5/6 and 3/2/3 and we add them
-5/5 = -1
-1/6 = -1/6 OR -0.166666666666666666...
3/2 = 3/2
(3/2) / 3 = 1/2 OR 0.5
now we do the A part; addition
(-1/6) / 1/2 = -1/3 OR .33333333333333333333333333....
Step-by-step explanation:

The volume of the cylinder is 64/3773 cubic units
<h3>Volume of a cylinder</h3>
The formula for calculating the volume of a cylinder is expressed as:
V = πr²h
where
r is the radius
h is the height
Given the following parameters
r = 2/7units
h =8/11 units
Substitute
V = 22/7 * 2/7 * 2/7* 8/11
V = (2/7)³ * 8/11
V = 8/343 * 8/11
V = 64/3773 cubic units
Hence the volume of the cylinder is 4/3773 cubic units
Learn more on volume of cylinder here: brainly.com/question/9554871
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