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The shape below is formed from a pyramid and a cuboid. What is the volume of this shape?

1) 18 cm³
2) 37 cm³
3) 20 cm³
4) Cannot be determined

User Anca
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2 Answers

3 votes

Answer:

17200cm³

Step-by-step explanation:

1. calculate the base of the cuboid
- length x width
- 20 x 20 = 400
2. calculate the volume of a pyramid
- 1/3 x base area x perpendicular height
- 1/3 x 400 x 18 = 2400
3. calculate the volume of a cuboid
- length x width x height
- 20 x 20 x 37 = 14800
4. add the volumes of the cubiod and pyramid
- 14800 + 2400 = 17200cm³

User Ilanco
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8.2k points
3 votes

Final answer:

To find the volume of the shape formed from a pyramid and a cuboid, calculate the volumes of each individually and then add them together. The volume of the pyramid is 6 cm³ and the volume of the cuboid is 24 cm³. Adding them together gives a total volume of 30 cm³.

Step-by-step explanation:

To find the volume of the shape formed from a pyramid and a cuboid, we need to calculate the volumes of each component separately and then add them together. Let's calculate the volume of the pyramid and the cuboid:

Pyramid:

The volume of a pyramid is given by the formula V = (1/3) * base area * height.
In this case, the base is a triangle, and its area is (1/2) * base * height.
The height of the pyramid is the slant height of the triangular face. Let's assume it is 3 cm.
The base of the triangle can be calculated using the Pythagorean Theorem, giving us a base length of 4 cm.
Plugging these values into the formula, we get V = (1/3) * (1/2) * 4 cm * 3 cm * 3 cm = 6 cm³.

Cuboid:

The volume of a cuboid is given by the formula V = length * width * height.
In this case, the length is 4 cm, the width is 2 cm, and the height is 3 cm.
Plugging in these values, we get V = 4 cm * 2 cm * 3 cm = 24 cm³.

Now, let's add the volumes of the pyramid and the cuboid together:
Total volume = 6 cm³ + 24 cm³ = 30 cm³.

Therefore, the volume of the shape formed from the pyramid and the cuboid is 30 cm³.

User Nandin
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