Question 50
Fill in the blanks to make the statement true.
The ___ triangle always has altitude outside itself.
The obtuse-angled triangle always has altitude outside itself.
Question 55
In an isosceles triangle, two angles are always ___
Question 51
The sum of an exterior angle of a triangle and its adjacent angle is always ___.
Question 52 Fill in the blank to make the statement true. A ___ triangle has no lines of symmetry.
Question 52
The supplement of a right angle is always ___ angle.