Thursday

December 18, 2014

December 18, 2014

Posted by **madad** on Saturday, December 3, 2011 at 4:27pm.

options are:

16cm by 28cm

12cm by 21cm

4cm by7cm

8cm by28 cm

i chose the first option cuz it increased 50.but i ma not sure if i am right.

- Math -
**Ms. Sue**, Saturday, December 3, 2011 at 4:32pmPresent perimeter: 16 + 28 = 44

44 * 1.5 = 66 = new perimeter

The perimeter you chose is 32 + 56 = 88

Check out the other options. Which produces a perimeter of 66 cm?

- Math -
**hiba**, Saturday, December 3, 2011 at 4:44pm8cm by 28 cm ?

I am confused . Geometery is not my thing .

- Math -
**Ms. Sue**, Saturday, December 3, 2011 at 5:01pmP = 2L + 2W

Present perimeter:

P = 2(8) + 2(14)

P = 16 + 28

P = 44

- Math -
**hiba**, Saturday, December 3, 2011 at 5:22pmit make sense so , just apply the Perameter formula and put the valuse so answers is 44 then 44*1.5 = 66.

But How i have deal with increased 50% deminsion thing .

please can you simplfy this .

- Math -
**Ms. Sue**, Saturday, December 3, 2011 at 5:33pmUse trial and error.

Using your choices, figure out the perimeter for each set of dimensions.

P = 2L + 2W

Which produces a perimeter of 66?

- Math -
**hiba**, Saturday, December 3, 2011 at 5:45pm12cm by 21cm = 2*33= 66

??

- Math -
**Ms. Sue**, Saturday, December 3, 2011 at 5:47pmLet's check it out.

P = 2(21) + 2 (12)

P = 42 + 24

P = 66

Right!

- Math -
**hiba**, Saturday, December 3, 2011 at 6:11pmThanks.

- Math -
**Ms. Sue**, Saturday, December 3, 2011 at 6:22pmYou're welcome.

**Answer this Question**

**Related Questions**

math - a 3'' times 5'' photo is enlarged so that the length of the new photo is ...

Math - A photo width is 2 in. more than it's length. A borderof 1 in is placed ...

EQUVALENT RATIO - When a photo is reduced or enlarged, its length to width ratio...

Math - The area of a rectangle is shown below The area of the rectangle is 56 ...

math - An 8 in. by 10 in. photo is reduced by dividing the length and width by 2...

alegebra - Mr. Baker wants to enlarge a photo that is 5 by 7 inches so that the ...

Math - A 4in. by 5in. photo is enlarged by multiplying the length and width by 2...

math - a photo 5 inches wide and 7 inches long is enlarged. The sides of the new...

geometry - 2. Unit 5 Lesson 12: A photographer enlarges a photo by using a scale...

math - An 8 in. by 10 in. photo is reduced by dividing the length and width by 2...