Question

Two cubes have sides of length 4 cm and 2 cm. What is the ratio of their respective surface areas?

Answer 1

Answer:

4:1

Step-by-step explanation:

Surface area of 1st cube =

$6 {a}^{2}$

$6 \times 4 {}^{2}$

$96$

Surface area of second cube =

$6 {a}^{2}$

$6 \times {2}^{2}$

$24$

So, their ratio is

$\frac{96}{24}$

$\frac{4}{1}$

4:1