Two of the angles in a triangle measure 50° and 25°. What must be the measure of the third angle?

105 degrees

Step-by-step explanation: 50 + 25 = 75. a triangle must have 180 degrees to be an actual triangle, take 180-75 and you get 105 degrees.

78.59 is the mean

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: