Answer:
35ft
Explanation:
Given that,
distance ball is away from edge of circular green = 7ft
distance of ball from the point of tangency = 21ft
suppose distance from hole to edge = r
so distance from hole to ball = 7+r
we will use pythagorus theorem
Step1
Find the radius
r² + 21² = (r+7)²
r² + 441 = r² + 49 + 14r
441 = 49 + 14r
392 = 14r
r = 28
Step2
distance of ball from hole
r + 7
28+7
35ft