Jim is designing a seesaw for a children’s park. the seesaw should make an angle of 30° with the ground and the maximum height to which it should rise is 2 meters. -what is the maximum length of the seesaw?

1.5/sin 30=c/sin 90 
. 
1.5m/0.5=c/1 
. 
3 m=c Answer
. 
Also, 
in 30° 60° 90° special triangle you can just apply the side ratio to lessen calculations: 
. 
short leg= x 
long leg =x√3 
hypotenuse = 2x 
. 
if hypotenuse is given just divide it by 2 to find x then apply x to the legs... 
ex: hypo= 4 
4=2x 
4/2=x 
2=x 
so short leg=2, long leg=2(√3) 
. 
check by pythagorean: 
2^2 plus [2(√3)]^2=c^2 
√(4 plus 12)=c 
√16=c 
4=c 

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