I'LL GIVE BRAINLIEST !!! FASTERplease explain how do you get the answer
2 answers:
Answer:
Step-by-step explanation:
The inner angles of a quadrilateral all add up to 360. This means we can write the following
Now that we have x we can find y. Notice that y and 2x are on the same line. Any line cutting another straight line will create two angles that add up to 180.
Therefore we can write
Finally computing y - x
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Answer:
is a subset of
Step-by-step explanation:
Required
Difference between subset and proper subset
To answer this question, I will use the following illustration.
In the above sets, set B is a proper subset of set A because all elements of B can be found in A, but not element of A can be found in B.
Set C is a subset of A because
Using the above illustration, we have:
and
is a subset of
, because 5 and 8 are in
but 2 which ca be found in
is not in