Pacian J

12 April 2023 15:37

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Pacian J

12 April 2023 15:37

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Hitunglah luas permukaan Bangun ruang diatas ?

Hitunglah luas permukaan Bangun ruang diatas ?

 

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Nanda R

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13 April 2023 03:26

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<p>diketahui :&nbsp;</p><p>panjang sisi kubus = lebar balok = tinggi balok = 26 cm&nbsp;</p><p>panjang balok = 48 cm&nbsp;</p><p>ditanya : luas permukaan bangun = ...?</p><p>Lp bangun = lp kubus + lp balok - luas bangun berhimpit</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 6×s² + 2(pl+pt+lt) - 2×luas persegi</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 6×26² + 2(48×26 + 48×26 + 26×26) - 2(s×s)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 6×676 + 2(1248+1248+676) - 2(26×26)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 4056 + 2(3172) - 2(676)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 4056 + 6344 - 1352</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 9048 cm².</p>

diketahui : 

panjang sisi kubus = lebar balok = tinggi balok = 26 cm 

panjang balok = 48 cm 

ditanya : luas permukaan bangun = ...?

Lp bangun = lp kubus + lp balok - luas bangun berhimpit

                    = 6×s² + 2(pl+pt+lt) - 2×luas persegi

                    = 6×26² + 2(48×26 + 48×26 + 26×26) - 2(s×s)

                    = 6×676 + 2(1248+1248+676) - 2(26×26)

                    = 4056 + 2(3172) - 2(676)

                    = 4056 + 6344 - 1352

                    = 9048 cm².


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AAQIEL A

12 April 2023 15:49

<p>L p persegi=6×r</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =6×26</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =156 cm²</p><p>L p persegi panjang=2×(p×l)+(p×t)+(l×t)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=2×(48×26)+(48×26)+(26×26)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=2×(1.248+1.248+676)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=2×3.172</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=6.344 cm²</p><p>L total=6.344+156</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=6.500 cm²</p><p>&nbsp;</p>

L p persegi=6×r

                    =6×26

                    =156 cm²

L p persegi panjang=2×(p×l)+(p×t)+(l×t)

                                   =2×(48×26)+(48×26)+(26×26)

                                   =2×(1.248+1.248+676)

                                   =2×3.172

                                   =6.344 cm²

L total=6.344+156

           =6.500 cm²

 


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