Since we are asked to find DF, and we are given an angle and the side opposite to it, we can use the sine function to find DF.
let x be the length of side DF.
sin(32)= 17/x
x= 17 / sin(32)
x= 32.08
approximately 32.1
To find 9 you have to do Diameter x pi and when you do that you get 7.85
Answer:
first, second and fourth are all correct
Step-by-step explanation:
It is presumed that the 10m is the vertical distance in 4 floors so 10meters divided by 10 seconds is 1m/second is the average speed of the escalator. Hard to add anything to this to make up to the required 40 words.
