Answer:
The value of radius is 7.5 units
Step-by-step explanation:
Given that a line that pass through the origin and form a triangle is a right-angle triangle. So in order to find the diameter/hypotenuse, you have to use Pythogaras Theorem :

Let a = 12 units,
Let b = 9 units,
Let c = hypo.,




We have found out that the hypotenuse of the triangle is the diameter of circle. So in order to find radius, you have to divide it by 2 :



 
        
             
        
        
        
Answer:
113, 118, 151, 162, 167, 181, 206, 207, 228, 232, 232, 233, 233, 247, 248, 251, 253, 255, 256, 276
Step-by-step explanation:
Good luck man :)
 
        
             
        
        
        
Answer:
<u>a = 13</u>
Step-by-step explanation:
We should know that: The sum of the interior angles of the triangle = 180°
Given the measure of the angles: (6a - 2) , (5a - 13) and (5a - 13)
So, 
 (6a - 2) + (5a - 13) + (5a - 13) = 180°
16 a - 28= 180               ⇒ Add 28 to both sides
16 a = 180 + 28 = 208  ⇒ Divide both sides by 16
a = 208/16 = 13