Determine if the statement is always, sometimes, or never true:
A right triangle is an obtuse triangle.
always
sometimes
never
always
All triangles have a total of 180 degrees. A right triangle has one angle that is 90 degrees. How can any other angle equal more than 90 degrees?
so never
Right. A right triangle is NEVER an obtuse triangle.
To determine if the statement is always, sometimes, or never true, we need to understand the definitions of the terms involved.
A right triangle is a triangle that has one angle measuring 90 degrees.
An obtuse triangle is a triangle that has one angle greater than 90 degrees.
By comparing the definitions, we can conclude that a right triangle cannot be an obtuse triangle. This is because in a right triangle, one angle measures 90 degrees, which is not greater than 90 degrees.
Therefore, the statement "A right triangle is an obtuse triangle" is never true.
Determine if the statement is always, sometimes or never true.
A scalene triangle is a regular polygon.
Always
sometimes
never
What do you think?
http://www.mathsisfun.com/definitions/obtuse-triangle.html