Thursday

December 18, 2014

December 18, 2014

Posted by **Amy** on Saturday, April 9, 2011 at 5:43pm.

Using a ratio of 1:2, draw a similar rectangle that is double the width and length of the first shape. Determine the perimeter and area of this new rectangle.

Draw one more rectangle using a ratio of 1:3 (a rectangle that is triple the width and length of the original shape).

- Math -
**Ms. Sue**, Saturday, April 9, 2011 at 5:51pmP = 2L + 2W

P = (2 * 8) + (2 * 6)

P = 16 + 12

P = 28

A = L * W

A = 6 * 8

A = 48 sq. inches

- Math -
**Anonymous**, Saturday, April 9, 2011 at 5:55pmThank you so much. I got that part but I don't understand using the ratio 1:2.

- Math -
**Bosnian**, Saturday, April 9, 2011 at 6:01pmPerimeter of rectangle:

P=2w+2l

P=2(w+l)

Area of rectangle:

A=w*l

w=width

l=length

w=6in l=8in

P=2(w+l)

P=2*(6+8)=2*14=28in

A=w*l=6*8=48in^2

Ratio 1:2

w=2*6=12in l=2*8=16in

P=2(w+l)

P=2*(12+16)=2*28=56in

A=w*l=12*16=192in^2

Ratio 1:3

w=3*6=18in l=3*8=24in

P=2(w+l)

P=2*(18+24)=2*42=84in

A=w*l=18*24=432in^2

**Answer this Question**

**Related Questions**

Math - 1) Rectangle ABCD has a perimeter of 106 inches. If the width is 7 inches...

Math-II - Rectangle A and B are similar. The ratio of rectangle B's width to ...

math - the perimeter of rectangle y is equal to its area. rectangle z has the ...

7grade math - using ratio 1:2 find the perimeter of rectangle that has a width ...

area, perimeter - the perimeter of rectangle y is equal to its area. rectangle z...

Algebra - The length of a rectangle is (x+2) inches. The width of the rectangle ...

Algebra 1 - The perimeter of the rectangle shown below is 16a+2b. Which ...

math 117 - A rectangle has an area of (a^2+4a+4) square inches, and you know ...

math - The width of a rectangle is x inches long. The length of that rectangle ...

basic geometric - 10. a rectangle has width the same as a side of a square whose...