All the pictures are in order for every question
1.) Which is the correct classification for the triangle?

A.) right triangle

B.) acute triangle

C.) obtuse triangle

D.) equiangular triangle

2.) What is the value of x?

Enter your answer in the box.

x =

3.) What is the value of x?

degrees

4.) What is the measure of angle x?

A.) 144º

B.) 105º

C.) 69º

D.) 111º

Step-by-step explanation:

1. The sum of angles in a triangle is 180°. The sum of the given angles is less than 90°, so the remaining angle must be more than 90°. When the largest angle is more than 90°, it is an obtuse angle. A triangle with an obtuse angle is classified as obtuse.

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2. The sum of the interior angles is 180°, so we have ...

  x° +39° +102° = 180°

  x° = 39° . . . . . . . . . . . subtract 141°

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3. The third interior angle is the supplement to the sum of the given interior angles. Likewise, x° is the supplement to the third interior angle, so its value is the same as the sum of the two given interior angles. (The rule is often stated as "an exterior angle is equal to the sum of the remote interior angles.")

  x° = 130° +37°

  x° = 167°

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4. Same deal as problem 3:

  x° = 75° +36°

  x° = 111°