Cosine rule
Cosx=(11 ²+8²-(15²))/2(11)(8)
Cosx=(121+64-225)/176
Cosx=-40/176
Cosx=-5/22
X=cos-1 -5/22
X=103.1
25×10=250 length then 51,000÷250 I do division different. hope this helps
C.
Because the given condition required to have a flower garden first and then the probability of having a vegetable garden is calculated.