Ebony defines an obtuse angle as an angle that is not acute. is ebony’s definition valid?

Ebony's definition is not valid.

Step-by-step explanation:

Obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

And acute angles measure more than zero degrees and less than 90 degrees.

We know that a right triangle is neither acute nor obtuse.

As Ebony has not mentioned right angles, so her definition is not valid.

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.