If one ten is ten then just simply multiply 12*10 and its 120 which can be equal to one hundred and two tens
Answer:
10
Step-by-step explanation:
<em>10 + 10 = 2x</em>
<em>2x = 20</em>
<em>10 + 10 = 20</em>
<em>x = 10</em>
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C
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All angles are the same in congruent triangle.
