Question 3


Which is an obtuse angle?


Triangle ABC with angles A and C less than 90 degrees and angle B is more than 90 degrees.



∠CAB



∠ABC



∠BCA



∠BAC


1 points

Question 4


Which sentence is true about a ray?



A ray is formed by two lines that do not cross each other.



A ray is formed by an endpoint and a line starting at the endpoint and going on forever in one direction.



A ray is formed by two lines that cross at one point.



A ray is formed when two points on a line are labeled.


1 points

Question 5


Classify ∠MBW as right, acute, obtuse, or straight.


obtuse


right


acute



straight