Answer: 4 r3
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given
The length of the wire is 
The Wire makes an angle of
with horizontal
Suppose the height of the tree is h
From the figure, we can write

Thus, the height of the tree is
Answer:
Step-by-step explanation:
The circumference is defined to be c=2πr. where the circumference is equal to 2 times pi times the radius