Use Pythagorean Theorem:
a² + b² = c²
"a" is one side of the right triangle.
Its length is: radius of larger circle minus radius of smaller circle: (11 - 3 = 8)
The distance between the center of the circles creates the hypotenuse (17)
8² + b² = 17²
b² = 225
b = 15
Answer: the length of the common external tangent is 15.
Hello,
if tan x=√3/3 then x=30°+k*180° k: integer
49/-7 and -21/3 are the only two equivalent to -7
Answer:
Is non-linear
Step-by-step explanation:
It is a quadratic function
