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>
Answer:
Step-by-step explanation:
D
There is no correlation it’s a scattered plot
Answer:
no
Step-by-step explanation:
the legs of a table are perpendicular the top of the table because they intersect at 90° since they are perpendicular, they clearly intersect, so they cannot lie in parallel planes
