If two altitudes of a triangle have lengths 10 and 15 , what is the smallest integer that could be the length of the third altitude?
A.
7
B.
5
C.
8
D.
6
Exam No：2018 First Round Grades 10-12 Year：2018 Question No：23
Answer:
A
Knowledge points:
G10-12 - Number Theory - Triangle Inequality (Integer Solutions)
Solution:
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