Answer:
i will only answer 11 and 4
Step-by-step explanation:
4: 23 i know its not the whole thing
11:45 its not the full thing
2x - 6 = 20
2x = 20 + 6
2x = 26
x = 26/2
x = 13 <==
The formula for the lateral surface area of a right circular cone is:

where r is the radius of the base, and l is the slant height.
Plugging in the values we get:
Answer:
3 * 3 * 3 * 3
=> 
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If patio is square it means that area of if is

where a is one side
Now we can substitute A=200 and solve eq

a=

a=14.1421
Now we are rounding to the nearest tenths
a=14.1 because next number is 4 and is less then 5.
The result is 14.1