L1 & 2 ⇒ axt = 12x16 = 192 cm²
L3 ⇒ pxl = 16x18 = 288 cm²
L4 ⇒ pxl = 20x18 = 360 cm²
L5 ⇒ pxl = 12x18 = 216 cm²
Luas permukaan = L1&L2+L3+L4+L5 = 192+288+360+216 = 1056 cm²
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L1 & 2 ⇒ axt = 12x16 = 192 cm²
L3 ⇒ pxl = 16x18 = 288 cm²
L4 ⇒ pxl = 20x18 = 360 cm²
L5 ⇒ pxl = 12x18 = 216 cm²
Luas permukaan = L1&L2+L3+L4+L5 = 192+288+360+216 = 1056 cm²
Semoga membantu :)