Saturday

December 20, 2014

December 20, 2014

Posted by **Thomas** on Sunday, January 5, 2014 at 11:09pm.

a. 17 cm^2

b. 24 cm^2

c. 31 cm^2

d. 38 cm^2

e. 48 cm^2

please answer and explain

- math -
**Reiny**, Sunday, January 5, 2014 at 11:44pm2(x + x+2) = 24

4x+4=24

4x=20

x=5

the original rectangle is 5 by 7

take it from there

- math -
**Thomas**, Monday, January 6, 2014 at 12:58amso, doubling the lenghts = 2x+4

14+14+5+5=38

answer d

- math -
**Reiny**, Monday, January 6, 2014 at 11:22amRead your question more carefully, it said to double the original triangle's LONGEST sides

original longest side = 7

new longest side = 14

new recctangle is 5 by 14

new perimeter = 38

**Answer this Question**

**Related Questions**

math - The length of a rectangle is three times the length of a side of a square...

basic geometry - A rectangle has width the same asa a side of a square whose ...

algebra - A square and a rectangle have the same perimeter. The length of the ...

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

Math - answer to travis has designed a rectangle with an area of 59 square units...

7th grade - one side of a rectangle is 15 centimeters longer than the other side...

maths - the length of a rectangle is 3 less than 5 times its width. Write a ...

Math - The first question is this: Helen designs a rectangle with an area of 225...

Math - The length and width of a rectangle are (x+4) cm and x cm respectively. ...

math - the length of a rectangle is 5 ft more than twice the width. a)if x ...