I am hoping that the a in c = ad is supposed to be x.
The formula for circumference is c = pi * diameter with 3.14 substituting for pi.
Let’s plug in some values
172.7 = 3.14d
Divide
55 = d
The diameter should be 55 cm.
The value of
when
comes to be
.
Given that trigonometric ratio:

<h3>What is the tangent of an angle?</h3>
The tangent of an angle is the ratio of the opposite side(to that angle) to the adjacent side(to that angle).
So, for the given problem
Opposite side to
= 11
Adjacent side to
= 60
So, 

Therefore, the value of
when
comes to be
.
To get more about trigonometric ratios visit:
brainly.com/question/24349828
Answer: 5/7. So B
Step-by-step explanation:
what do you mean? what is the measure of f? there isnt a problem or graph that i can see to go off of