Answer:
Step-by-step explanation:
Given
equation of circle 
Equation of tangent passing through (1,1)
Slope of tangent is given by differentiating equation of circle


at 

Equation of line with slope


The answer is D! This shape is a pentagon and has 3 180° angles. 3x180 is 540.
Answer:
19,25
Step-by-step explanation:
chia hi