A side of the triangle below has been extended to form an exterior angle of 71°. Find the value of x.
200
71°
2 =
Submit Answer

9514 1404 393

  51

Step-by-step explanation:

The exterior angle is equal to the sum of the remote interior angles.

  71° = 20° + x°

  51 = x . . . . . . . . . divide by °, subtract 20

Additional comment

Consider the missing interior angle of the triangle. It is 180° - 71°. It is also 180° -20° -x°. Equating these values and rearranging, we get ...

  71° = 20° + x°

In short, supplements of the same angle are congruent. This relationship can save you the unnecessary work of figuring out the missing interior angle.

center= (-2,0)

radius= sqrt2/2

step-by-step explanation:

i use my brain for prombles like this maybe you could try it

step-by-step explanation: