Ltrapesium=1/2x(a+b)xt
1/2x(28+14)x19
1/2x42x19
399 cm2
karena trapesium nya ada 2 maka
399 cm2 x 2
798 cm2 "b"
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Ltrapesium=1/2x(a+b)xt
1/2x(28+14)x19
1/2x42x19
399 cm2
karena trapesium nya ada 2 maka
399 cm2 x 2
798 cm2 "b"