A triangle has 3 sides, 10000, 1000, 10x. Find 10x. What 2 numbers can x be between. answer format: ?

Question

A triangle has 3 sides, 10000, 1000, 10x. Find 10x. What 2 numbers can x be between.

answer format: ?<X<?
please help!!!!!!!!!!

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    2021-09-06T11:36:01+00:00

    The triangle inequality applies.

    a) 10000 < 1000 +10x
    .. 1000 < 100 +x
    .. 900 < x

    b) 1000 < 10000 +10x
    .. 100 < 1000 +x
    .. -900 < x

    c) 10x < 10000 +1000
    .. x < 1100

    x can be between 900 and 1100

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