Practice Activity - Sharp EL-W535B Operation 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
The law of sines is
The law of cosines is
1. Given
2. Given
3. Given
4. Given
5. Given
law of sines.
a b

 
sin sin
 
2 2
c a
      
30 , 63 , a 11
___________________
 
 
16 69
grads,
___________________
   
a 30 , b 40 , 1 5 .
___________________

  
a 15 , c 30 , 45
___________________

  
b 13 , c 23 , 100
___________________
20
c

.

sin


2
b 2 ab cos
.
determine the length of side c.

b 123
grads, find the length of side a.
radians find the length of side c.

find the length of side b.
grads find the length of side a using the