Find the value of a.

= 81° + a° + a° = 180° ( angle sum property )

The three angles of this triangle are :

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

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