Sam used wire fencing to form a border around a circular region of his back yard where he wanted to plant grass. If the radius of the circular region was 4 yards, what was the total length of the border rounded to the nearest tenth of a yard?

A. 201.1
B. 50.3
C. 25.1
D. 12.6

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.