Penjelasan dengan langkah-langkah:
luas permukaan
= 5×s×s + p×l×t
= 5×5cm×5cm + 5cm×9cm×18cm
= 125cm² + 785 cm²
= 935 cm²
Jawaban:
b. 694 cm²
• Lp kubus
= 6 x S²
= 6 x 5 x 5
= 30 x 5
= 150 cm²
• Lp balok
= 2 x (( p x l ) + ( p x t ) + ( l x t ))
= 2 x (( 9 x 5 ) + ( 9 x 18 ) + ( 5 x 18 ))
= 2 x ( 45 + 162 + 90 )
= 2 x 297
= 594 cm²
• L sisi berhimpit
= 2 x S²
= 2 x 5 x 5
= 10 x 5
= 50 cm²
• Lp gabungan
= Lp kubus + Lp balok - L sisi berhimpit
= 150 cm² + 594 cm² - 50 cm²
= 744 cm² - 50 cm²
= 694 cm²
Ket :
S = Sisi kubus
p = panjang balok
l = lebar balok
t = tinggi balok
Semoga dapat membantu
dan mohon maaf bila salah
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Penjelasan dengan langkah-langkah:
luas permukaan
= 5×s×s + p×l×t
= 5×5cm×5cm + 5cm×9cm×18cm
= 125cm² + 785 cm²
= 935 cm²
Jawaban:
b. 694 cm²
Penjelasan dengan langkah-langkah:
• Lp kubus
= 6 x S²
= 6 x 5 x 5
= 30 x 5
= 150 cm²
• Lp balok
= 2 x (( p x l ) + ( p x t ) + ( l x t ))
= 2 x (( 9 x 5 ) + ( 9 x 18 ) + ( 5 x 18 ))
= 2 x ( 45 + 162 + 90 )
= 2 x 297
= 594 cm²
• L sisi berhimpit
= 2 x S²
= 2 x 5 x 5
= 10 x 5
= 50 cm²
• Lp gabungan
= Lp kubus + Lp balok - L sisi berhimpit
= 150 cm² + 594 cm² - 50 cm²
= 744 cm² - 50 cm²
= 694 cm²
Ket :
S = Sisi kubus
p = panjang balok
l = lebar balok
t = tinggi balok
Semoga dapat membantu
dan mohon maaf bila salah