Question

Dk how to do this can sm1 explain

Answer 1

Area of sphere = πr²
36π = πr²
Divide both side by π

36π/π= πr²/π
36 = r²
r = 6

Answer 2

$V = \frac{4}{3}\pi r^3\\r^3 = \frac{3V}{4\pi}\\r = \sqrt[3]{\frac{3V}{4\pi}}$

$r = \sqrt[3]{\frac{3*36\pi}{4\pi}} = \sqrt[3]{3*9} = \sqrt[3]{27} = 3$ m

Answer: B (3 m).