56.
If one side of a triangle is longer than another
side, then the angle opposite the longer side has a
greater measure than the angle opposite the
shorter side. In
n
BDC
,
/
BCD
is opposite a side
whose measure is 9, and
/
CDB
is opposite a side
whose measure is 13. 9
,
13, so
m
/
BCD
,
m
/
CDB
.
57.
If one side of a triangle is longer than another
side, then the angle opposite the longer side has a
greater measure than the angle opposite the
shorter side. In
n
BDC
,
/
CBD
is opposite a side
whose measure is 10, and
/
BCD
is opposite a
side whose measure is 9. 10
.
9, so
m
/
CBD
.
m
/
BCD
.
58.
There are 6 equilateral triangles.
59.
There are 18 obtuse triangles in the figure, 3 in
each equilateral triangle.
60.
True; the hypothesis is false, so we cannot say
that the statement is false.
61.
False; the hypothesis is true, but the conclusion is
false.
62.
True; the hypothesis is false, so we cannot say
that the statement is false.
63.
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 Fall '10
 Dr.Zhan
 Calculus, PreCalculus, triangle, Regular polygon

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