ok now this is a e-z one...........
A.18 cm
B.120 cm
C.36 cm
D.60 cm
2007-02-22 06:11:17 · 14 answers · asked by bekkers14392 1 in Science & Mathematics ➔ Mathematics
Well let's say 2 of the sides (a and b) are 10 each and 2 of the sides (c and d) are 5 each. THat would give you a perimeter of 30. now if you double all of those sides
a - 10 now is 20
b - 10 now is 20
c - 5 now is 10
d - 5 now is 10
Add all those up and you get 60...so the answer is D, 60cm.
2007-02-22 06:16:49 · answer #1 · answered by Kelly B 2 · 0⤊ 0⤋
permit length of rectangle = l width of rectangle = b perimeter of rectangle = 2(l+b) = 30cm (given) now length and width are doubled new perimeter = 2(2l+2b) =2*2(l+b) = 2*30=60 so answer is determination D
2016-11-25 00:11:50 · answer #2 · answered by ? 4 · 0⤊ 0⤋
B. 120 cm
2007-02-22 06:19:33 · answer #3 · answered by me 2 · 0⤊ 0⤋
B. 120 cm
2007-02-22 06:17:56 · answer #4 · answered by pirates89 1 · 0⤊ 0⤋
D. 60 cm
2007-02-22 06:17:01 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Doubled in what? Perimeter? Area?
If you mean area, that's pretty hard, I guess.
5x10=50, perimeter 30. If area increases, it will be 100.
4x11=44, perimeter 30. If area doubles, it will be 88.
So I'm gonna guess you mean Perimeter, it will be 60? D.
2007-02-22 06:16:45 · answer #6 · answered by Anonymous · 0⤊ 0⤋
D) 60
2007-02-22 06:57:18 · answer #7 · answered by cheeky_little_monkey! 2 · 0⤊ 0⤋
D. 60
You just double each side of the rectangle
2007-02-22 06:13:39 · answer #8 · answered by Anonymous · 1⤊ 0⤋
double. 60 cm
good luck
2007-02-22 06:21:09 · answer #9 · answered by Anonymous · 0⤊ 0⤋
P = 30cm
if you doubled the size youd have 60cm.
2007-02-22 06:15:38 · answer #10 · answered by Anonymous · 0⤊ 0⤋