Question

With reference to the above figure, what is the
union set of ray OA and ray OB?
(A) ray OA
(B) ray AO
(C) seg OA
(D) line AO​

Answer 1

$Union \: set \: of \:ray \: OA \:and \: ray \:OB$

$is \: \underline {\pink{ \:ray \: OA }}$

$\underline {\blue{Ray : }}$

A ray is a part of a line . It begins at a point and goes on endlessly in a specified direction .

While

line extended in both directions endlessly.

Therefore.,

$Option \: \green { ( A ) } \: is \: correct.$

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Answer 2

Answer :

ray OA

Explanation :

As, we know that ray can only extend from one side and his one side is fixed but line can extend in both directions. So, ray OA is correct