An isosceles triangle has exactly one side of length 10 . If its perimeter is 28 , what is the length of one of its other sides?
A.
8
B.
9
C.
10
D.
18
Exam No：2020 First Round Grade 5 Year：2020 Question No：11
Answer:
B
Knowledge points:
G5 - Geometry - Triangle Inequality (Validation & Application)
Solution:
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