This preview shows pages 1–3. Sign up to view the full content.
Final_Exam_Review_MA_139_Answers
1
MATH 139
FINAL EXAM REVIEW PROBLEMS
ANSWERS
1.
Area of nonshaded region in (a) is
22
2
(1)
4
0.86
ππ
−=
−
≈
Area of nonshaded region in (b) is
( )
2
2
2
2
1.14
−
≈
2.
a.
The base is an equilateral triangle with area of 27.72 sq. meters.
b.
24 meters.
c.
41.04 sq. meters.
3. Perimeter = 240 mm.
Area = 2400 mm
2
.
4. Determine for each of the following the smallest number of
faces
possible:
a.
Prism: 5
b.
Pyramid: 4
c.
Polyhedron: 4
5. A prism whose bases are 11gons has 33 edges.
A pyramid cannot have exactly 33 edges
because the number edges is twice the number of vertexes in the base.
6.
e
=
30
z
=
4 5
8.94
≈
7.
Perimeter =
12
2
5
13
+++
.
8.
Area = 12.5 sq. units.
9.
Fill in the blank with “All,” “Some,” or “No.”
a.
some
rectangles are squares.
b.
no
parallelograms are trapezoids.
c.
all
rhombuses are quadrilaterals.
10.
Joe is not right.
He had drawn a square with area of 9 sq. cm.
80 mm
100 mm
48 mm
A
B
C
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document Final_Exam_Review_MA_139_Answers
2
11.
One square mile is
2
5280 sq ft = 27878400
sq ft
One acre = 43560 sq ft
One square mile = 27878400/ 43560 acres = 640 acres
12.
This is the end of the preview. Sign up
to
access the rest of the document.
This document was uploaded on 01/23/2012.
 Spring '09
 Math

Click to edit the document details