Can a triangle have two obtuse angles? explain

Remember that an obtuse angle measures greater than 90°.

A triangle never contains two obtuse angles.

If a triangle were to contain two obtuse angles, then there would be two angles in the triangle that measure greater than 90°, so the sum of these two angles would be greater than 180°. Since we know that the sum of all three angles in a triangle must be exactly 180°, it doesn't make sense that the sum of two of the angles would already by greater than 180°.

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