Question

Alas sebuah prisma berbentuk belah ketupat dengan diagonal d1 dan d2. perbandingan d1 : d2 = 2:3 jika tinggi prisma 20 cm dan volume prisma 960 cm2, maka d2 =

Answer 1

Verified answer

MAPEL: MATEMATIKA
BAB: BANGUN RUANG



Jawab:
Volume = luas alas×tinggi
960×2 = 2X × 3X ×20
1920 = 6X² × 20
1920 ÷ 20 = 6X²
96 = 6X²
6X² = 96
X² = 16
X = √16
X = 4


d2 = 3X
d2 = 3(4)
d2 = 12 cm




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Answer 2

MAPEL : MTK
BAB : BANGUN RUANG
_____________________

Diketahui:
d1 : d2 = 2:3
t prisma = 20 cm
V = 960 cm²

Ditanya :
d2 =...?

Dijawab:
V = 1/2 d1.d2.t
960 = 1/2.2x.3x.20
960 = 60x²
x² = 960/60
x² = 16
x =√16
x = 4

d1 = 2x
=>2.4
=>8 cm

d2 = 3x
=>3.4
=> 12 cm

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