Question

What is the area of the figure in square millimeters and in square centimeters.



A.
325 mm² and 32,500 cm²

B.
325 mm² and 3.25 cm²

C.
375 mm² and 37,500 cm²

D.
375 mm² and 3.75 cm²

Answer 1

@iGreen.

Answer 2

We can cut this into two squares.

Square 1 = 15^2

Square 2 = 10^2

Okay, now what's 15 * 15?

Answer 3

225

Answer 4

Yes, and what's 10 * 10?

Answer 5

`100

Answer 6

Yes, now add 225 + 100

Answer 7

325

Answer 8

Yes, so the area is 325mm^2

Now let's convert to cm^2.

1mm^2 = 0.01cm^2

What's 325 * 0.01?

Answer 9

3.25

Answer 10

thanks

Answer 11

Yes, so it's 325mm^2 or 3.25cm^2

Answer 12

No problem.