Answer:
3
Step-by-step explanation:
Answer: the second bubble down the first row
when you plan the coordinate you need to use 1,2,3,4 to get the simplest answers.
the cosine of x is 60
h =12
Therefore, by geometric mean property:
length of the slide is lets say 'l' the height (h) opposite to the angle 28 is found by h=l*sin28 where sin28=0.47 approximately h=4.5*0.47 h=2.115m
