if a sphere of radius r is divided equally in four parts, the total surface area of the All Four Points will be
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AREA OF SPHERE=4πr²
SO IT IS DIVIDED BY 4 EQUAL PARTS=4πr²÷4
=πr²
Surface are of two identical semicircular regions = 2*πr^2/2 = πr^2.
So, surface area of each part = 2πr^2.
Total surface area of all four parts = 8πr^2.
Step-by-step explanation:
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