The shed area is 4ft * 9ft = 36 ft².
The playground area is 12ft * 21ft = 252 ft².
Are you sure the question isn't: "What's the area of the playgrount NOT covered by the shed? Then we get to use the other numbers!
If that is the question, the answer would be 252-36 = 216 ft²
For angle A, you need to do 180-130 which is 50
for angle B, you need to do 180- 90 - 50 which is 40
for angle C, you need to do 180 - 60 - 40 which is 80
If you want me to explain you with further details with how exactly I got those answers and how I knew what to do, then ask me.
Answer:
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Step-by-step explanation:
To find the side length given the area you would take the square root.
s^2 = a
square root of s^2 = s
So: s = sqrt a
A = 144
s = sqrt 144
s = 12in