Answer:
se eu não me engano é 10 graus.
Step-by-step explanation:
Because 3/6 equals 1/2 and 2/9 equals 1/3
Answer:
The length of shadow decrease at 0.48 m/s.
Step-by-step explanation:
The distance of man from building = x
Thus initially, x = 12
It is given that dx/dt= -1.3 m/s
Let the shadow height = Y
Now solve for the
when x=4
from the diagram (triangle) it can be seen similar triangles with similar base/height ratios.

Answer:
37.68
Step-by-step explanation:
c = 2 x 3.14 x 6