Prisma segitiga siku siku dengan panjang sisi siku sikunya 30cm dan 40cm. Jika tinggi prisma 60cm, maka luas permukaan prisma adalah... A.6400cm³ B.7200cm³ C.8400cm³ D.9200cm⁴ pakai caranya ya
FionaCitra
Sisi miring segitiga: = √30² + 40² = 50 cm
marfaaudilla19
Luas permukaan = 2 x luas alas + keliling alas x tinggi = 2 x (1/2 x a x t) + (a + b + c) x 60 = 2 x (1/2 x 30 x 40) + (30 + 40 + c) x 60 sisi miring = √30² + 40²' = √900 + 1600 = √2500 = 50 cm
= 2 x (1/2 x 30 x 40) + (30+40+50) x 60 = 1200 + 7200 = 8400 cm²
= √30² + 40²
= 50 cm
Lp = 2 × La + Ka × tinggi
= 2 (1/2 × 30 × 40) + (30 + 40 + 50) × 60
= 1.200 + 7.200
= 8.400 cm²
= 2 x (1/2 x a x t) + (a + b + c) x 60
= 2 x (1/2 x 30 x 40) + (30 + 40 + c) x 60
sisi miring = √30² + 40²'
= √900 + 1600
= √2500
= 50 cm
= 2 x (1/2 x 30 x 40) + (30+40+50) x 60
= 1200 + 7200
= 8400 cm²