Posted by Billy on Sunday, October 23, 2011 at 1:05pm.
An isosceles triangle has a base of 9.8 units long. If the congruent side lengths have measures to the first decimal place, what is the shortest possible length of the sides.

geometry  Henry, Monday, October 24, 2011 at 2:40pm
a + c > b,
a + c > 9.8, a  c.
Substitute a for c:
a + a > 9.8,
2a > 9.8,
a > 4.9,
a = c = 5.1.
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