Classification of Triangles
A triangle with three sides of equal length could be:
Two angles in a triangle measure 100° and 40°. Is the triangle isosceles?
If one of my angles measures 50°, what type of triangle could I be?
Will the three pencils with lengths of 3, 4, and 6 create an acute, right, or obtuse triangle?
Is this triangle isosceles?
What type of triangle has both an 89° angle and a 1° angle?
Two sides of an isosceles triangle measure 3 and 5. What could be the length of the third side?
Above, a line cuts across two adjacent rectangles.
How many right triangles can you find in this diagram?
If , and in the above triangle, what type of triangle is ?
The length of is the same as that of
in the above triangle. If , what is ?
Suppose that , and \angle C = 45^\circ[/math]. If points , and are the midpoints of , and , respectively, what type of triangle is ?
Note: The above diagram is not drawn to scale.
What do we call a triangle which has exactly 2 equal angles?