# if an perimeter of a shape is 20cm whats the area

what would be the area if the perimeter is 20cm

I am assuming a four sided figure!

p = 20 cm.

p  = 2l + 2w

20 = 2l + 2w

10 = l + w

Potential values:

Area = l*w

l = 1, w = 9             A = 1*9 = 9 in.^2

l = 2, w = 8             A = 2*8 = 16 in.^2

l = 3, w = 7             A = 3*7 = 21 in.^2

l = 4, w = 6             A = 4*6 = 24 in.^2

l = 5, w = 5             A = 5*5 = 25 in.^2

answered Apr 29, 2012 by Level 9 User (43,640 points)
If the shape was as square then it would be 25cm2 as 4 into 20 is 5 and when finding the area you always multiply the lenght by the width so 5x5 is 25!
answered Oct 28, 2012 by anonymous
10cm2 I think

152 views
188 views
103 views
296 views
19 views
53 views
10 views
447 views
523 views
15 views
129 views
340 views
35 views
44 views
1,561 views
60 views
13 views
186 views
148 views
17 views
49 views
68 views
336 views
23 views
90 views
152 views
183 views
907 views
102 views
93 views
126 views
5 views
20 views
190 views
198 views
32 views
90 views
153 views
62 views
10 views
34 views
46 views
229 views