Question

What universal set(s) would you propose for the given: The set of right triangles.

Answer 1

Universal set : if we assume there are some sets A, B, C and U in such a way that A, B, C are subset of set U then, U is universal set of given sets. mathematically,
if $A\subset U,B\subset U\: \textbf{and}\:C\subset U$
then, U is universal set of given sets.

now, come to the question,
We know that right triangle is a type of triangle with an angle 90°
Thus, a set of triangles will contain all the right triangles.
∴universal set, U = {x: x is a triangle in plane}

Answer 2

Answer:

Set of all triangles in a plane .

Step-by-step explanation:

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Universal set is a set which

containing all objects including

itself .

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Given set " The set of right

triangles "

Required Universal Set " Set of

all triangles in a plane "

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