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: 40 x 32
: 1.280cm²
3. Rumus: a x t
: 40 x 28
: 1.120cm²
5. Rumus: 1/2 x (a+b) x t
: 1/2 x (36+24) x 20
: 1/2 x 60 x 20
: 30 x 20
: 600cm2
9. Rumus: d1 x d2 x 1/2
: 27 x 34 x 1/2
: 918 x 1/2
: 459cm²
Semoga Membantu Anda :D
3. luas jajar genjang = alas x tinggi = 40 x 28 = 1120 cm²
5. luas trapesium = 1/2 ( A+B) x t = 1/2 x (36+24) x 20 = 10 x 60 = 600 cm²
9. luas belah ketupat = 1/2 x d1 x d2 = 1/2 x 27 x 34 = 459 cm²