PLEASE HELP I DON'T KNOW THIS IT IS SO HARD?? I will give brainliest to the CORRECT ANSWER :(
2 answers:
Answer:
D
Step-by-step explanation:
Hey There!
So the first thing we want to do is find the volume for a rectangular prism
volume = height x length x width
so to find the volume of this prism we do
If you plug that into a calculator you get that the volume of the prism is 1 1/2
Now we want to find how many half unit cubes there are
It says that there are 8 half unit cubes in every unit cube
So to find the amount of half cubes we multiply 8 by 1 1/2
=12
So we can conclude that the answer to this problem is D
<em>The1AndOnlyMarkus</em>
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Answer:
The volume of the regular tetrahedron is 283.5 m³
Step-by-step explanation:
The formula of the volume of the regular tetrahedron is V = A h, where
- A is the base area of it
- h is the height of it
∵ The area of the base of a regular tetrahedron is 98.9 m²
∴ A = 98.9 m²
∵ The height of it is 8.6 m
∴ h = 8.6 m
→ Substitute them in the formula of the volume above
∵ V = (98.9)(8.6)
∴ V = 283.5133333 m³
→ Round it to the nearest tenth of a cubic meters
∴ V = 283.5 m³
∴ The volume of the regular tetrahedron is 283.5 m³