Which angles are obtuse angles in the figure shown?

a. ∠fvi and ∠gvf
b. ∠fve and ∠ive
c. ∠fvi and ∠gve
d. ∠fvh and ∠gvh

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Answer! if you don’t mind, can you explain

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6