Answer:
8. ○ [tex]\displaystyle 35°[/tex]
7. ○ [tex]\displaystyle right[/tex]
6. ○ [tex]\displaystyle isosceles[/tex]
5. ○ [tex]\displaystyle 108°[/tex]
4. ○ [tex]\displaystyle 34,9°[/tex]
3. ○ [tex]\displaystyle supplementary[/tex]
2. ○ [tex]\displaystyle none\:of\:these[/tex]
1. ○ [tex]\displaystyle \: \: → \\ CD[/tex]
Step-by-step explanation:
8. Use the Triangular Interior Angles:
180° = x° + 105° + 40°
180° = x° + 145°
- 145° - 145°
____________
[tex]\displaystyle 35° = x[/tex]
7. This is obviously a right triangle.
6. A triangle with two congruent sides is considered an isosceles triangle.
5. Supplementary Angles sum up to 180°:
180° = x° + 72°
- 72° - 72°
___________
[tex]\displaystyle 108° = x[/tex]
4. Complementary Angles sum up to 90°:
90° = 55,1° + x°
- 55,1° - 55,1°
____________
[tex]\displaystyle 34,9 = x[/tex]
3. These angles are considered supplementary angles because they sum up to 180°.
2. These two angles are congruent, according to the Vertical Angles Theorem, which is NOT an option, so you would choose none of these.
1. This is considered a ray [from endpoint to infinity], so you would choose this option.
I am joyous to assist you anytime.
