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An someone help me with #10 I am super confused I’ll give the brainliest!
If you can’t see the pic: The problem is A theme park has a ride located in half a sphere which has a circumference of 515.96 yards. What is the surface area of the sphere? Estimate to the nearest hundredth using 3.14 for PI

An someone help me with #10 I am super confused I’ll give the brainliest! If you can’t see the pic: The problem is A theme park has a ride located in half a sph class=

Answer :

so use half the surface area formula: SA=2πr^2 and plug in what you already know
since you don't know the radius yet, solve for it using the circumference
C=2πr
514.96=3.14(2)r
82=r

SA=2π(82)^2
SA=6.28(6724)
SA=42,226.72
so your answer is 42,226.72 yards squared

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