All GED Math Resources
Example Questions
Example Question #693 : Geometry And Graphs
Let
Find the surface area of a sphere with a radius of 5in.
To find the surface area of a sphere, we will use the following formula:
where r is the radius of the sphere.
Now, we know . We know the radius of the sphere is 5in. So, we can substitute. We get
Example Question #1661 : Ged Math
Let
If a sphere has a radius of 3cm, find the surface area.
To find the surface area of a sphere, we will use the following formula:
where r is the radius of the sphere.
Now, we know . We know the radius of the sphere is 3cm. So, we substitute. We get
Example Question #142 : 3 Dimensional Geometry
Find the surface area of a cube with a length of 9in.
To find the surface area of a cube, we will use the following formula.
where a is the length of any side of the cube.
Now, we know the length of the cube is 9in. Because it is a cube, all sides/lengths are equal. Therefore, we can use any side of the cube in the formula. So, we get
Example Question #691 : Geometry And Graphs
Find the surface area of a cube with a side length of .
Write the formula for the surface area of a cube.
Substitute the side length into the formula.
The answer is:
Example Question #1661 : Ged Math
Find the surface area of a cube with a side length of .
Write the formula for the surface area of a cube.
Substitute the side.
The answer is:
Example Question #21 : Faces And Surface Area
A cube has a height of 12in. Find the surface area.
To find the surface area of a cube, we will use the following formula.
where a is the length of any side of the cube.
Now, we know the height of the cube is 12in. Because it is a cube, all sides are equal (this is why we can use any length/side in the formula). So, we will use 12in in the formula. We get
Example Question #701 : Geometry And Graphs
Find the surface area of a cube with a length of 11in.
To find the surface area of a cube, we will use the following formula:
where a is any length of the cube. Because a cube has equal lengths, widths, heights, we can use any of those sides in the formula.
Now, we know the length of the cube is 11in. So, we can substitute. We get
Example Question #1664 : Ged Math
Find the surface area of a sphere with a radius of 10in.
To find the surface area of a sphere, we will use the following formula:
where r is the radius of the sphere.
Now, we know the radius of the sphere is 10in. So, we will substitute. We get
Example Question #23 : Faces And Surface Area
Find the surface area of a cube with a side edge of .
Write the formula for the surface area of a cube.
Substitute the side into the equation.
The answer is:
Example Question #1662 : Ged Math
If the surface area of a cube is , what is the volume of the cube in cubic inches?
Recall the formula to find the surface area of a cube:
Start by solving for the length of a side of the cube.
Now recall how to find the volume of a cube:
Plug in the found side length to find the volume.
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