Try the fastest way to create flashcards
Question

# Two cubes are placed next to each other. The length of each of the edges of the larger cube is $4 \mathrm{~cm}$. If the ratio of their surface areas is $1: 4$, calculate:a the surface area of the small cube,b the length of an edge of the small cube.https://cdn.mathpix.com/snip/images/0KLgQSqtWLyeuB5Zs-UIBiLI1p6kQ9lNh3yGo3Sx5zY.original.fullsize.png

Solution

Verified
Step 1
1 of 6

Use the formula for the area of the cube to solve this task.

$\begin{equation} A=6a^2 \end{equation}$

Let $A_b$ - an area of a big cube $A_s$ - an area of a small cube

## Recommended textbook solutions #### Cambridge IGCSE Mathematics Core and Extended

4th EditionISBN: 9781510421684Ric Pimentel
1,758 solutions #### Core Connections Integrated 3

1st EditionISBN: 9781603283939Brian Hoey, Judy Kysh, Leslie Dietiker, Tom Sallee
1,778 solutions #### Big Ideas Math Integrated Mathematics II

1st EditionISBN: 9781680330687Boswell, Larson
4,539 solutions #### Big Ideas Math Integrated Mathematics III

1st EditionISBN: 9781680330878Boswell, Larson
3,800 solutions