anonymous
  • anonymous
A parallelogram has an area of 14 cm 2. If the dimensions of the parallelogram are doubled, what will the new area be? 14 cm 2 28 cm 2 56 cm 2 112 cm 2 For a game, Tony has a rectangle drawn on a piece of paper that has an area of 18 in.2. What should he do to the dimensions in order to have a similar rectangle that's area is only 2 in.2? Divide them by nine. Divide them by six. Divide them by three. Multiply them by three.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
SolomonZelman
  • SolomonZelman
you can take a square to demonstrate this.
SolomonZelman
  • SolomonZelman
|dw:1435778829705:dw|
anonymous
  • anonymous
^^

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
idk
SolomonZelman
  • SolomonZelman
|dw:1435778855063:dw|
SolomonZelman
  • SolomonZelman
that is when all dimensions are doubled.
SolomonZelman
  • SolomonZelman
|dw:1435778929521:dw|
SolomonZelman
  • SolomonZelman
you can see that when you doubled the dimensions your square got 4 times bigger, right?
SolomonZelman
  • SolomonZelman
(same is true when doubling dimensions in a parallelogram)
anonymous
  • anonymous
yeah ..
anonymous
  • anonymous
i really suck at this stuff
SolomonZelman
  • SolomonZelman
ok, so if you double the dimensions of a parallelogram your area will be 4 times bigger|dw:1435779175933:dw|
SolomonZelman
  • SolomonZelman
so if your area of a parallelogram is 14, then when dimensions are doubled the area is going to be?
SolomonZelman
  • SolomonZelman
(or, are you done with question 1 already?)
anonymous
  • anonymous
is it 28
SolomonZelman
  • SolomonZelman
14 • 4 = ?
SolomonZelman
  • SolomonZelman
your area is FOUR times bigger when dimensions are doubled.
anonymous
  • anonymous
56?
SolomonZelman
  • SolomonZelman
yes
SolomonZelman
  • SolomonZelman
Now, your next q. I will put it up again not to scroll up....
SolomonZelman
  • SolomonZelman
` ` For a game, Tony has a rectangle drawn on a piece of paper that has an area of 18 in.2. What should he do to the dimensions in order to have a similar rectangle that's area is only 2 in.2? Divide them by nine. Divide them by six. Divide them by three. Multiply them by three. ` `
SolomonZelman
  • SolomonZelman
you mean area of 18 in², and you want to multiply/divide the dimensions by some number, so that the area is only 2 in².
SolomonZelman
  • SolomonZelman
so your rectangle has an area of `L•W` In this case, we know that: L • W = 18 but we want that to be 2
anonymous
  • anonymous
is it C
SolomonZelman
  • SolomonZelman
when you multiply the dimensions times this number (call it x), you are multiplying each dimensions by x, so our new equation is going to be (L•x) • (W • x)=2 and we know (L) • (W)=2
SolomonZelman
  • SolomonZelman
(L•x) • (W • x)=2 (L•W) • (x • x)=2 (L•W) • (x²)=2 substitue u=L•W u • x²=2 x²=2/u again, we know that L•W=18 (or u=18) x²=2/u x²=2/18 x²=1/9 x=1/3 (we don't consider negative scale factors)
SolomonZelman
  • SolomonZelman
So, you would need to multiply times 1/3. And multiplying times 1/3 is same as dividing by 3. Yes, C is correct.
anonymous
  • anonymous
thank you:)
SolomonZelman
  • SolomonZelman
yw (if you want to know how I put up • × ÷ ≈ and all that just let me know. it would work on most sites and word doc)

Looking for something else?

Not the answer you are looking for? Search for more explanations.