Sharp EL-W535B User Manual
NAME ___________________________________________ DATE________________
TRIGONOMETRIC FUNCTIONS
Use your EL-W535B together with the law of sines and the law of cosines
to find the distance of the missing side
to find the distance of the missing side
The law of sines is
sin
sin
sin
c
b
a
.
The law of cosines is
cos
2
2
2
2
ab
b
a
c
.
1. Given
11
,
63
,
30
a
determine the length of side c.
___________________
2. Given
16
grads,
69
grads,
123
b
find the length of side a.
___________________
3. Given
5
.
1
,
40
,
30
b
a
radians find the length of side c.
___________________
4. Given
45
,
30
,
15
c
a
find the length of side b.
___________________
5. Given
100
,
23
,
13
c
b
grads find the length of side a using the
law of sines.
___________________
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