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}
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
The sum of angles of a triangle is equal to
One right angle
Two right angles
Three right angles
Four right angles
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
None of these
In ΔPQR,
oand o. Find all angles of a triangle
o. Find all angles of a triangle
70^{o}, 52^{o}, 58^{o}
76^{o}, 42^{o}, 62^{o}
76^{o}, 46^{o}, 58^{o}
70^{o}, 60^{o}, 50^{o}
If one angle of a triangle is obtuse then that triangle is called ________
Acute angle triangle
Obtuse angled triangle
Right angled triangle
Equalateral triangle
If all sides of a triangle are equal, then it is called __________
Scalene triangle
Equilatoral triangle
Isosceles triangle
A/An------------- of a triangle , corresponding to any side , is the length of perpendicular drawn from the opposite vertex
to that side.
Median
Altitude
Base
from figure,
90^{o}
180^{o}
360^{o}
270^{o}
The ________ of a triangle corresponding to any side, is the line joining the mid point of that side with the opposite vertex.
Perpendicular