15 inches
i found it on https://answers.yahoo.com/question/index?qid=20160331230251AA3MILQ
Answer:
25
Step-by-step explanation:
The pattern is + 1, + 3, + 6,... i.e. + 1, + (1 + 2), + (1 + 2 + 3),...
.'. Missing number = 15 + (1 + 2 + 3 + 4) = 25.
keeping in mind that an angle bisector cuts an angle into two equal angular halves.
check the picture below
Answer:

Step-by-step explanation:
Area of a Circle: 
The r is the length of the radius of the circle
The radius of the shown circle is 9 m


It is a quadratic equation, if it is equal to zero. It is not factor able.