What is the surface area of the figure? 12TT cm2 24TT cm2 144TT cm2 36TT cm2​

The surface area of the figure is;

36·π cm²

Step-by-step explanation:

The parameters of the figure are;

The shape of the figure = A sphere

The radius of the sphere, r = 3 cm

The surface area of a sphere, A = 4·π·r²

Therefore, for the given sphere, we have;

The surface area of the sphere, A = 4 × π × (3 cm)² = 4 × π × 9 cm²

∴ The surface area of the figure (sphere), A = 36·π cm².

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have