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jadi L= p x l= 24 x 21=504 cmkuadrat
b. Luas sbelum diperbesar 48 cmkuadrat
Luas sesudah diperbesar 504 cmkuadrat
48:504= 6: 63
jadi perbandingannya adalah 6:63
6 8
21 x
x= 21×8÷6
= 28 cm
a) L= 21×28
= 588 cm^2
b) L1: L2
8×6 : 21×28
48 : 588
4 : 49