Surface Area of Cylinders and Spheres (HSC SSCE Mathematics Standard): Quizzes

Total area covering all outer surfaces

$12$ cm

$SA = 2\pi rh$

$SA = 2\pi r^2 + 2\pi rh$

$SA = 4\pi r^2$

$SA = 2\pi r^2$

$SA = 3\pi r^2$

Open has only curved surfaces; closed has all

$314$ cm²

Calculate one object first, then multiply