13.
Read the statements shown below.

If a polygon has three sides, it is a triangle.
If an angle of a triangle measures 90°, it is a right triangle.
Beth constructed a triangle in the geometry class.

Based on the given statements, which is a valid argument? (6 points)

It can be concluded that Beth drew a right triangle.
It can be concluded that Beth drew a scalene triangle.
It cannot be concluded that Beth drew a triangle with an angle measure of 90°.
It cannot be concluded that Beth drew a polygon with three sides.

Question

13.  
Read the statements shown below.

If a polygon has three sides, it is a triangle.
If an angle of a triangle measures 90°, it is a right triangle.
Beth constructed a triangle in the geometry class.

Based on the given statements, which is a valid argument?  (6 points)

    It can be concluded that Beth drew a right triangle.
    It can be concluded that Beth drew a scalene triangle.
    It cannot be concluded that Beth drew a triangle with an angle measure of 90°.
    It cannot be concluded that Beth drew a polygon with three sides.

unklerhaukus · Answer

It cannot be concluded that Beth drew a triangle with an angle measure of 90°.

anonymous · Answer

Isn't the property of all right triangles must include a 90 degree angle, thus being a right triangle?  I don't see how the triangle can be scalene, an angle with more than 90 degrees since she drew a right triangle.  The other two statements don't make much sense either so I think the first one is the valid argument.

unklerhaukus · Answer

Read the question carefully 
Beth constructed a triangle in the geometry class.
it does not say beth drew a right angled triangle