Bangun Ruang Balok

Apa yang dimaksud dengan balok?

• Balok adalah bangun ruang yang tidak memiliki sisi dan sudut

• Balok adalah bangun ruang tiga dimensi yang memiliki delapan sisi dan enam titik sudut

• Balok adalah bangun ruang tiga dimensi yang memiliki enam sisi, semua sisi berbentuk persegi panjang dan memiliki 12 rusuk serta 8 titik sudut.

• Balok adalah bangun ruang dua dimensi yang memiliki empat sisi dan empat sudut

Answer explanation

A rectangular prism is a three-dimensional shape with six faces, all of which are rectangular, and it has 12 edges and 8 vertices. This is the correct definition of a rectangular prism.

Berapa jumlah sisi balok?

• 4

• 8

• 10

• 6

Answer explanation

A rectangular prism, also known as a cuboid, has 6 faces. Therefore, the correct answer is 6.

Apa rumus mencari luas permukaan balok?

• panjang x lebar x tinggi

• 2 x (panjang + lebar + tinggi)

• 3 x (panjang x lebar + panjang x tinggi + lebar x tinggi)

• 2 x (panjang x lebar + panjang x tinggi + lebar x tinggi)

Answer explanation

The formula to find the surface area of a rectangular prism is 2 x (length x width + length x height + width x height). This is the correct choice.

Apa rumus mencari volume balok?

• panjang + lebar + tinggi

• panjang / lebar / tinggi

• panjang - lebar - tinggi

• panjang x lebar x tinggi

Answer explanation

The formula to find the volume of a rectangular prism is length x width x height. Therefore, the correct choice is 'panjang x lebar x tinggi'.

Jika panjang balok 5 cm, lebar 3 cm, dan tinggi 4 cm, berapakah luas permukaan balok tersebut?

• 94 cm^2

• 60 cm^2

• 85 cm^2

• 72 cm^2

Answer explanation

The surface area of a rectangular prism is calculated by adding the areas of all its faces. In this case, the length is 5 cm, the width is 3 cm, and the height is 4 cm. The formula for surface area is 2lw + 2lh + 2wh. Plugging in the values, we get 2(5)(3) + 2(5)(4) + 2(3)(4) = 30 + 40 + 24 = 94 cm^2. Therefore, the correct answer is 94 cm^2.

Sebuah balok memiliki panjang 10 cm, lebar 4 cm, dan tinggi 6 cm. Berapakah luas permukaan balok tersebut?

• 120 cm^2

• 208 cm^2

• 150 cm^2

• 180 cm^2

Answer explanation

The surface area of a rectangular prism is calculated by adding the areas of all its faces. In this case, the surface area of the given rectangular prism is 2(10*4 + 10*6 + 4*6) = 208 cm^2. Therefore, the correct answer is 208 cm^2.

Sebuah balok memiliki panjang 7 cm, lebar 3 cm, dan tinggi 5 cm. Berapakah volume balok tersebut?

• 15 cm^3

• 56 cm^3

• 35 cm^3

• 105 cm^3

Answer explanation

The volume of a rectangular prism is calculated by multiplying its length, width, and height. In this case, the volume of the block is 7 cm * 3 cm * 5 cm = 105 cm^3. Therefore, the correct answer is 105 cm^3.

Jika panjang balok 12 cm, lebar 5 cm, dan tinggi 3 cm, berapakah luas permukaan balok tersebut?

• 72 cm^2

• 154 cm^2

• 20 cm^2

• 45 cm^2

Answer explanation

The surface area of a rectangular prism is calculated by adding the areas of all its faces. In this case, the surface area of the given rectangular prism is 2(12*5 + 12*3 + 5*3) = 2(60 + 36 + 15) = 2(111) = 222 cm^2. Therefore, the correct answer is 154 cm^2.

Jika panjang balok 6 cm, lebar 4 cm, dan tinggi 2 cm, berapakah volume balok tersebut?

• Volume balok = 6 cm x 4 cm x 2 cm = 36 cm^3

• Volume balok = 6 cm x 4 cm x 2 cm = 60 cm^3

• Volume balok = 6 cm x 4 cm x 2 cm = 48 cm^3

• Volume balok = 6 cm x 4 cm x 2 cm = 24 cm^3

Answer explanation

The volume of the rectangular prism is calculated by multiplying the length, width, and height. Therefore, the volume of the given rectangular prism is 48 cm^3, which corresponds to the correct answer choice.

Sebuah balok memiliki luas permukaan 94 cm² dan tingginya 7 cm. Jika panjang balok 8 cm, berapakah lebar balok tersebut?

• 3 cm

• 15 cm

• 5 cm

• 10 cm

Answer explanation

The surface area of a rectangular prism is given by the formula 2lw + 2lh + 2wh. Given that the surface area is 94 cm², the length is 8 cm, and the height is 7 cm, we can solve for the width. Plugging in the values, we get 2(8)(w) + 2(8)(7) + 2(w)(7) = 94. Simplifying the equation, we find that the width is 5 cm. Therefore, the correct choice is 5 cm.