Answer:

Step-by-step explanation:
x is the center of the circle.
the chord of length 12 can be splitted into two parts of 6 length each.
since the radius does not change when it touches another end of the circle, we can safely calculate our radius to be the hypotenuse of the triangle formed by the length of the chord and 3.
The explanation is given in the picture
Answer:
Angle 1: Can be measures of triangle: 84
Cannot be angle measures of triangle: 49, 47
Angle 2: Can be measures of triangle: none
Cannot be angle measures of triangle: 50,89,50
Angle 3: Can be angle measures of triangle: 75, 15, 45
Cannot be angle measures of triangle: none
Angle 4: Can be angle measures of triangle: none
Cannot be angle measures of triangle: 25, 22, 133
first one it is the absolute value of -3 and the other one is -3 itself absolute value of -3 mean 3
Answer:
9.94*1/7.1= 1.4 acres
Step-by-step explanation: