21
is what I got on my calculator
The square root of 5 is 2.2 and 4 times the square root of 10 is 100
Answer:
60 degrees.
Step-by-step explanation:
We use trigonometry of a right angled triangle:
Adjacent side = 20 ft, Hypotenuse = 40 ft.
cos x = adjacent / hypotenuse = 20/40 = 1/2
x = 60 degrees.
Im not sure but i think its d
