Answer:
0.75
Step-by-step explanation:
Answer:
Tổng 3 góc trong 1 tam giác là 180 độ
Vậy góc B = 180 - A - C = 180 - 90 - 50 = 40 độ
Answer: for a the answer is 140° and for b x=25°
Step-by-step explanation:
for a, when you have 2 parallel lines cut by a transversal,the corresponding angles are congruent. and the angle140 is congruent to the corresponding angle as they are vertical angles are congruent.
for b, angle x is congruent to the angle that is supplementary to 155 therefore 180-155=25°
Answer:
30
Step-by-step explanation:
If they are parallel then the 2 labelled angles sum to 180.
2x+50+5x-80=180
7x-30=180
7x=210
x=30
Answer:
4
Step-by-step explanation:
We have 6f - 7z, where f = 3 and z = 2. Essentially, we just plug in these values:
6f - 7z
6 * 3 - 7 * 2
18 - 14
4
The answer is thus 4.
<em>~ an aesthetics lover</em>
