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anonymous
 one year ago
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.
anonymous
 one year ago
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.

This Question is Closed

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1you can take a square to demonstrate this.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435778829705:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435778855063:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1that is when all dimensions are doubled.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435778929521:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1you can see that when you doubled the dimensions your square got 4 times bigger, right?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1(same is true when doubling dimensions in a parallelogram)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i really suck at this stuff

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1ok, so if you double the dimensions of a parallelogram your area will be 4 times biggerdw:1435779175933:dw

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1so if your area of a parallelogram is 14, then when dimensions are doubled the area is going to be?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1(or, are you done with question 1 already?)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1your area is FOUR times bigger when dimensions are doubled.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1Now, your next q. I will put it up again not to scroll up....

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1` ` 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
 one year ago
Best ResponseYou've already chosen the best response.1you 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
 one year ago
Best ResponseYou've already chosen the best response.1so your rectangle has an area of `L•W` In this case, we know that: L • W = 18 but we want that to be 2

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1when 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
 one year ago
Best ResponseYou've already chosen the best response.1(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
 one year ago
Best ResponseYou've already chosen the best response.1So, you would need to multiply times 1/3. And multiplying times 1/3 is same as dividing by 3. Yes, C is correct.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1yw (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)
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