What kind of angle is this?

Whats the angle?

Step-by-step explanation:

If it's more than 90 degrees than it an obtuse.

If it's 90 degrees then its Right.

If it's lees than 90 degrees than its acute.

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2