Answer:
Tangent
Step-by-step explanation:
Given

See attachment for complete question
Required
Function to calculate BC
If AB is known, BC is calculated as:

Substitute d for AB and 50 for C

Make BC the subject

Hence, BC can be found using tangent
400/1 times 97/100 = <span>38800/100 = 388
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It is given in the question that, PA is a radius and AB is the tangent segment .
And in a circle, radius and tangent are always perpendicular, it means they form 90 degree with each other . Or angle PAB is a right angle .
And we cant say anything about the length s of PA and AB, neither of PA and PB.
So out of the four options, correct option is the third option .
That is the x spot or the non existing spot it is there just to make sure you have the numbers in order right and so the sums for the multiplication equation do not collide
1. 41
2. 50
3. 10
4. 75
5. i’m not really sure