A triangle can have ________ obtuse angles.
0
1
2
3
A triangle in which no two angles are equal is a
scalene triangle
equilateral triangle
isosceles triangle
none of these
In the figure ΔABC is a
equilateral
isosceles
scalene
right isosceles
The point of concurrence of medians of a triangle is called
orthocenter
centroid
circumcenter
A triangle can have ________ right angles.
In the figure xo=
40o
50o
60o
80o
The perpendicular line segment joining a vertex and its opposite side is called
altitude
median
bisector
In the figure, yo=
45o
55o
90o
35o
If one acute angle of a right angled triangle is 20o, the other angle is
70o
20o
If the sides of a triangle are 8 cm, 8 cm, 6 cm, then it is a / an.