Less than 90° = acute
more than 90° = obtuse
equal to 180° = straight
more than 360° = reflex
Answer:
19/3 > square root of 37 > 6.08171 > 6.012
If the vectors point towards the same direction, the magnitude of the vector quantities are added as in, C = A + B. If they point towards opposite direction, the magnitudes are subtracted giving a resultant vector equal to C = A - B.
Answer:
B
Step-by-step explanation:
Using the exact values
cos150° = - cos30° = - 
sin150° = sin30° = 
Given
z = 4(cos150° + isin150° ) , substitute values
= 4(-
+
i )
= - 2
+ 2i , that is
(- 2
, 2 ) → B
Check the picture below
area of a triangle is 1/2 bh