Answer:
its D
Step-by-step explanation:
Answer:
a. 1/2
b. 5/3
c. 0
d. undefined
Step-by-step explanation:
The answer to the above question can be explained as under -
We know that, the sum of angles of triangle is 180°.
So, vertex angle plus base angles are equal are equal to 180°.
Let the vertex angle be represented by "v" and base angles be represented by "b".
Thus, v + b + b = 180°
So, v + 2b = 180°
Next, the question says, the vertex angle is 20° less than the sum of base angles.
Thus, 2b - 20° = v
<u>Thus, we can conclude that the correct option is A) v + 2b = 180°, 2b - 20° = v</u>
3c-d
3c-(-c+7)
3c+c-7
4c-7
Final answer: 4c-7
The quick and easy answer is 3/100
