The point of intersection of the altitudes of a triangle is called _________
Orthocentre
Circumcentre
Centroid
None of these
If two sides of d triangle are equal, then it is called _________
Scalene triangle
Equilateral triangle
Isosceles triangle
The ________ of a triangle corresponding to any side, is the line joining the mid point of that side with the opposite vertex.
Median
Altitude
Perpendicular
If Δ ABC is an isosceles triangle. Then which of the following statement is false
Two of its sides are equal
Two od its angles are equal
Base angles are equal
Both 2 & 3 are false
In figure
<A + <B + <C
<A + <B
<A + <C
<B + <C
If one angle of a triangle is 90^{o} then it is called _________
Acute angled triangle
Rigtht-angled triangle
Obtuse angled triangle
If one angle of a triangle is greater than the sum of the other two angles then the triangle is
Acite angled
Obtuse-angled
Right angled
If all sides of a triangle are equal, then it is called __________
Equilatoral triangle
The angles of a triangle are (2x + 10)^{o}, (x + 20)^{o} and (x - 10^{o}). Find the value of x
10^{o}
20^{o}
30^{o}
40^{o}
A/An------------- of a triangle , corresponding to any side , is the length of perpendicular drawn from the opposite vertex
to that side.
Base