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Verified answer
Keliling = 2p + 2l70cm = 2(2x-3) + 2(x+5)
70cm = 4x - 6 + 2x + 10
70cm = 6x + 4
66cm = 6x
11cm = x
L=p×l
L=(2x-3)×(x+5)
L=(22-3)×(11+5)
L=19×16
L=304cm2
70 = 2(3x+2)
35 = 3x+2
3x = 33
x = 11
Luas = (2x-3)(x+5)
Luas = (2(11)-3)(11)+5)
Luas = (19)(16)
Luas = 304cm^