}
3
y
}
5
15
y
5
15(3) or 45
The sum of the remaining three numbers is
108
2
45 or 63.
Page 66
Maintain Your Skills
45.
There are 6 sides, so the polygon is a hexagon. No
line containing any of the sides will pass through
the interior of the hexagon, so it is convex. Not all
sides are congruent, so the hexagon is irregular.
46.
There are 5 sides, so the polygon is a pentagon.
No line containing any of the sides will pass
through the interior of the pentagon, so it is
convex. The sides and angles are congruent, so the
pentagon is regular.
47.
There are 7 sides, so the polygon is a heptagon.
There is a side such that a line containing the
side will pass through the interior of the
heptagon, so it is concave. Not all sides are
congruent, so the heptagon is irregular.
48.
Yes; the symbol denotes that
/
KJN
is a right
angle.
49.
No; we do not know anything about the angle
measures.
50.
No; we do not know whether
/
MNP
is a right
angle.
51.
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This note was uploaded on 12/19/2011 for the course MAC 1140 taught by Professor Dr.zhan during the Fall '10 term at UNF.
 Fall '10
 Dr.Zhan
 Calculus, PreCalculus

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