# Math Help - Area Question

1. ## Area Question

A square of 64cmSQUARED is cut to make two rectangles, A and B.
Heres a picture I made of the picture on the sheet.

the 3:1 shows that area A to area B is 3:1.
Then it says
"Work out the dimensions of rectanges A and B

Each 3rd would be 2.6cm horizontal
and 8 vertical.
I THINK.
But what would I put for dimensions?
The answer box has:

"Rectangle A: _____cm by _____cm"
"Rectange B: _______cm by ______cm"

Thanks

2. Originally Posted by FB FTW
A square of 64cmSQUARED is cut to make two rectangles, A and B.
Heres a picture I made of the picture on the sheet.

the 3:1 shows that area A to area B is 3:1.
Then it says
"Work out the dimensions of rectanges A and B

Each 3rd would be 2.6cm horizontal
and 8 vertical.
I THINK.
But what would I put for dimensions?
The answer box has:

"Rectangle A: _____cm by _____cm"
"Rectange B: _______cm by ______cm"

Thanks
A makes up 3/4 of the rectangle, and B makes up 1/4.

$64 = Length ^2$

So Length of each side = 8 units.

If A is 3/4 of 8, then A's sidelength = 6 and B's sidelength = 2.

A's area is therefore 6x8 = 48
B's area is therefore 2x8 = 16

Together it is 64 units squared.

3. So for the "Dimensions" ill put

"6 by 8" and "2 by 8"

?

4. Originally Posted by FB FTW
So for the "Dimensions" ill put

"6 by 8" and "2 by 8"

?
Yep.

5. yes