If a circle has a diameter whose endpoints are (-5, 8) and (5, -8), then the circle has its center at the origin. True False
2 answers:
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Answer:
The radius of Astrodome is 355.09 foot,
The Area of Astrodome is 395919.146 square foot .
Step-by-step explanation:
Given as :
The circumference of Astrodome = 2230 foot
∵ The circumference of circular shape = 2 × × radius
where = 3.14
So, The circumference of Astrodome = 2 × × radius
Or, 2230 foot = 2 × 3.14 × radius
Or, 2230 foot = 6.28 × radius
∴ radius =
I.e radius = 355.09 foot
Now,
∵The area of circular shape = × radius²
So, The area of Astrodome = × radius²
Or, The area of Astrodome = 3.14 × radius²
Put the value of radius = 355.09 foot
So , The area of Astrodome = 3.14 × (355.09)²
or, The area of Astrodome = 3.14 × 126088.9
∴ The area of Astrodome = 395919.146 square foot
Hence , The radius of Astrodome is 355.09 foot, and The Area of Astrodome is 395919.146 square foot . Answer