Trig - Unknown Side - Denominator SACHS
1
x
32o
25
Which rule applies to the 2 sidesand given angle?
1
x
32o
25
Sub these values into the cos ratio.
cos
o
=
1
x
32o
25
Multiply x up to the left.(Opposite of dividing by x)
× cos 32 = 25
1
x
32o
25
Divide cos 32 to the right.(To get x by itself)
x =       25
cos
o
1
x
32o
25
x = 29.4
Solve on your calculator.
x = 29.5
64
2
y
41o
Which rule applies to the 2 sidesand given angle?
64
2
y
41o
Sub these values into the tan ratio.
tan
o
=
64
2
y
41o
Multiply y up to the left.(Opposite of dividing by y)
x tan 41 = 64
64
2
y
41o
Divide tan 41 to the right.(To get y by itself)
y =      64
tan
o
64
2
y
41o
Solve on your calculator.
y = 73.6
y = 73.7
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