Practice (Cube & Cuboid)

A shape that has 6 equal faces, 12 edges and 8 vertices is called ...

• Cube

• Cuboid

• Cone

• Pyramid

Find the volume of the cube, having the sides of length 12 cm.

• 1.128 cm³

• 1.728 cm³

• 1.126 cm³

• 1.176 cm³

Answer explanation

Volume of a cube = (length of sides of the cube)³

Therefore, Volume = (12 cm)³

V = 12 cm x 12 cm x 12 cm

V = 1.728 cm³

Given that the volume of a cube is 300.763 cm³, what is the length of any one of its sides?

• 53

• 63

• 57

• 67

Answer explanation

Given, Volume of the cube = 300.763 cm³.

Let the length of the edges is ‘s’.

We know, by the formula,

The volume of a cube = (length of edges of the cube)³

Substituting the value, we get,

300.763 = s³

Or s = ³√300.763

Or s = 67 cm

Therefore, the length of the cube is 67 cm.

Find the volume total!

• 343 cm³

• 1.512 cm³

• 973 cm³

• 1.855 cm³

Answer explanation

Pertama, cari dulu volume setiap bangun.

Volume kubus (kiri) :

= 7 cm x 7 cm x 7 cm

= 343 cm³

Volume balok (kanan) :

= 18 cm x 7 cm (lebarnya sama dengan lebar kubus) x (5 cm+7 cm)

= 18 cm x 7 cm x 12 cm

= 1.512 cm³

^{Volume total :}

= Volume kubus + Volume balok

= 343 cm³ + 1.512 cm³

= 1.855 cm³

Find the volume total!

• 24 cm³

• 36 cm³

• 53 cm³

• 60 cm³

Answer explanation

Volume A : 2 cm x 3 cm x 6 cm = 36 cm³

Volume B : 4 cm x 3 cm x 2 cm = 24 cm³

Volume total :

36 cm³+ 24 cm³= 60 cm³

The volume of cube A is 39.304 cm^3.

The volume of cube B is 12.167 cm^3.

The volume of cube C 4.913 cm^3.

The height of the composite figure above is ...

• 74 cm

• 86 cm

• 94 cm

• 106 cm

Answer explanation

Tentukan dahulu panjang sisi dari setiap kubus.

panjang sisi kubus A :

³√39.304 = 34 cm

panjang sisi kubus B :

³√12.167 = 23 cm

panjang sisi kubus C :

³√4.913 = 17 cm

Tinggi ketiga kubus adalah :

34 + 23 + 17 = 74 cm