Use the Triangle Sum Theorem to determine the measure of the third angle in each triangular circuit. Label the triangles with the unknown angle measure

Only 1,2 and 4.a

sum= when you add is how much the whole amount is

distance= when you use angles and it means how far it goes

step-by-step explanation:

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

i dont know

step-by-step explanation: