l The phase shift of the trigonometric function s to 1 decim

l The phase shift of the trigonometric function s to 1 decimal place. Shom neue wert in t orea of the triangle ABC mith Bz, a w 3 feret and e 9 feet. Rounb oft pout odlut -siano c-28 centimatets blabelling the sides ano angie. of the figure belom, then solne the triangle. Rouno off neur eo in the gipen space utes figure belom, then sole it. Otouno off eacty number to the nearest mhole numbee, ehonoout toote in the gipen space 22. Drar the triangle ABC with a8cm., b 10 em. and C 115 bn tabelling the sides and angies of the

Solution

20. a = 3 feet, c=9 feet, B=20 degree

Area= (product of alternating sides/2)* sin(including angle)

Area= ( 3*9/2) sin(20 degree)= 4.6feet²