Math lV
Chapter5 Test(FormB)
6 pointseach.GoodLuck!
1. Write 75'30' as a decimalto the nearestthousandthof
a degree.
9. Usethe Lawof Sinesand/orCosines
to find the areaof
the triangle.
M B C , a = 1 8 , b= 2 2 , c = 3 0
2. Findthe measure
of the reference
anglefor 135o.
L0.SupposeI isan anglein standardpositionwhose
terminalside
liesin Quadrant
tl. tf sind =9
,findthe
t3'
valueof secd.
3.lf tan0 - -3, findcot9
4. Usethe unit circleto find the tan L80o'
11.Usethe l-awof Sinesand/orCosines
to find the value
ofa sidea to the nearesttenth.
MBC, A = 47",8 = 58',b = 23
12.Giventhe triangle,
findthe measure
of ZBtothe
nearesttenthif b=12andc=18.
c
b
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Name
5 pointseach.GoodLuck!
Math lV
Chapter5 Test(FormB)
5. ldentifoa coterminalanglebetween0oand3600forthe
angle-225o.
13.lf C = 372',a = 17.9,b= 223,find the areaof
MBC
6. Usethe Unit Circleto find: (leaveanswerin fraction
form)
a)sin(-90)"
b)csc
2250
14.Eachbaseangleof an isosceles
trianglemeasures
4230'. Thebaseis 14.6meterslong.Findthe altitudeof
the triangle.
7. Usethe LawofSinesand/orCosines
to findthe valueof
sidea to the nearesttenth.
MBC,A= 6'1",b= 10,c= 5
15. Usethe Lawof Sinesand/orCosines
to find the value
of AngleCto the nearesttenth.
MBC,a = 8,b = 6,c =12
8. Change25.6"to degrees,minutes,seconds
15.
g
tf
c
a) Findthe valueof the sinefor /.8
''
b) Findthe valueof the cotangentfor lB
c) Findthe valueof the secantfor /.8