Answer:
It is by definition. 210 means 21 tens or 21 * 10. 30 means 3 tens or 3*10.
Since there is a ten on the top and bottom of the divisor 210/30 is also the same thing as 21/3. All of which is 7 and all of which is true by definition.
Step-by-step explanation:
Answer:
No.
Step-by-step explanation:
Alternate interior angles are congruent.
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<em>More about such angles</em>
Alternate exterior angles are congruent.
Same-side interior angles are supplementary.
Same-side exterior angles are supplementary.
Linear angles are supplementary.
The first 4 is forty, the second 4 is four. Both of them together are fortyfour (44)