If sin theta = (square root 3)/2, then theta=60 degrees.
true or false?

 Let @ = theta. 

sin @ = sqrt(3) / 2 

The sine function equals sqrt(3) / 2 at the following angles measured in degrees: 
,-300, 60, 420, 780,1140,,60 + 360k and 
,-240, 120, 480, 840, 1200,,120 + 360k where k is an integer. 

@ = 60 + 360K and 
@ = 120 + 360K 

if k =  0 ; @ = 60 degrees ;

ANSWER: 

True

690

Step-by-step explanation:

381+313 = 694

To the nearest ten, 694 will be 690