Answers

2016-03-23T11:52:24+08:00
For the area, here are my answers.
S = 12cm A = 144cm^2
S = 13cm A = 169cm^2
S = 21cm A = 441cm^2
S = 43cm A = 1849cm^2
S = 52cm A = 2704cm^2
S = 87cm A = 7569cm^2
S = 45cm A = 2025cm^2

For the perimeter,
L = 42 cm W = 54 cm Perimeter is 192 cm.
L = 58^2 cm W = 12^2 cm Perimeter is 7016 cm.

If you have time, recheck.
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