All GED Math Resources
Example Questions
Example Question #1631 : Ged Math
If a cube has a height of 8cm, find the volume.
To find the volume of a cube, we will use the following formula:
where l is the length, w is the width, and h is the height of the cube.
Now, we know the height of the cube is 8cm. Because it is a cube, all sides/lengths are the same. Therefore, the length and the width are also 8cm. So, we can substitute. We get
Example Question #111 : 3 Dimensional Geometry
Let .
Find the volume of a cone with the following measurements:
- radius: 7cm
- height: 9cm
To find the volume of a cone, we will use the following formula:
where r is the radius and h is the height of the cone.
Now, we know . We know the radius of the cone is 7cm. We know the height of the cone is 9cm. So, we substitute. We get
Example Question #112 : 3 Dimensional Geometry
Find the volume of a cube with a width of 11in.
To find the volume of a cube, we will use the following formula:
where l is the length, w is the width, and h is the height of the cube.
Now, we know the width of the cube is 11in. Because it is a cube, all widths/lengths/etc are the same. Therefore, the length and the height are also 11in. So, we substitute. We get
Example Question #11 : Volume Of Other Solids
Find the volume of a cone with a radius of 2 and a height of 10.
Write the formula for the volume of a cone.
Substitute the radius and height.
The answer is:
Example Question #671 : Geometry And Graphs
Find the volume of a cone with a radius of and a height of .
Write the formula for the volume of a cone.
Substitute the radius and height into the formula.
The answer is:
Example Question #672 : Geometry And Graphs
What is the volume of a hemisphere with a radius of 2?
Recall that the volume of a full sphere is:
A hemisphere would be half this volume.
Substitute the radius.
The answer is:
Example Question #673 : Geometry And Graphs
A cube has a length of 9cm. Find the volume.
To find the volume of a cube, we will use the following formula:
where l is the length, w is the width, and h is the height of the cube.
Now, we know the length of the cube is 9cm. Because it is a cube, all sides/lengths are equal. Therefore, the width and height are also 9cm.
Knowing this, we can substitute into the formula. We get
Example Question #673 : Geometry And Graphs
Find the volume of a cube with a height of 6cm.
To find the volume of a cube, we will use the following formula:
where l is the length, w is the width, and h is the height of the cube.
Now, we know the height of the cube is 6cm. Because it is a cube, all lengths/sides/etc are equal. Therefore, the length and the width are also 6cm.
So, we substitute. We get
Example Question #674 : Geometry And Graphs
Find the volume of a cone with a radius of 8in and a height of 6in.
To find the volume of a cone, we will use the following formula:
where r is the radius and h is the height of the cone.
Now, we know the radius is 8in. We know the height is 6in. So, we can substitute. We get
Example Question #122 : 3 Dimensional Geometry
An office uses cone-shaped paper cups for water in their water cooler. The cups have a radius of inches and a height of inches. If the water cooler can hold cubic inches of water, how many complete cups of water can the water cooler fill?
Start by finding the volume of a cup.
Recall how to find the volume of a cone:
Plug in the given radius and height to find the volume.
Now divide the total volume of the water in the water cooler by the volume of one cup in order to find how many complete cups the water cooler can fill.
Since the question asks for the number of complete cups that can be filled, we must round down to .
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