Math 141
Name:
________________________
MIDTERM 4 – PART 1
(CHAPTERS 5 AND 6)
MATH 141 – FALL 2011 – KUNIYUKI
150 POINTS TOTAL: 44 FOR PART 1, AND 106 FOR PART 2
Show all work, simplify as appropriate, and use “good form and procedure” (as in class).
Box in your final answers!
No notes or books allowed.
• Write units in your final answers where appropriate.
• Try to avoid rounding intermediate results; if you do round off, do it to at least
five significant digits.
• We assume that all vectors on this test are in the usual
xy
-plane.
PART 1: SCIENTIFIC CALCULATORS ALLOWED!
(44 POINTS TOTAL)
1)
Find the length of Side
b
for the triangle below using the Law of Sines.
Round off your answer to the nearest tenth (i.e., to one decimal place) of an
inch. (8 points)

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