1. If length of one side of cube is 20 cm, then volume of cube must be:
2 answers:
Answer:
2. c. None of these
1. b. 8000 cm.³
Step-by-step explanation:
2.
Unfortunately, we do not have an answer choice of , so we leave it as "None of these".
1.
* All edges\sides of a square\square prism [cube] are congruent, so you take the cube root of 64 to get the length of each edge.
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Answer:
.
Step-by-step explanation:
Given:
We need to find .
Solution:
Now we can see that given figure is a rectangle with diagonals drawn in it.
So by properties of rectangle which states that;
"All angles of a rectangle are 90°."
So we can say that;
But
Substituting the values we get;
Subtracting both side by by 31 we get;
Hence .