The obtuse-angled triangle must have
four obtuse angles
three obtuse angles
two obtuse angles
one obtuse angle
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The obtuse-angled triangle must have
four obtuse angles
three obtuse angles
two obtuse angles
one obtuse angle
The medians of a triangle cut each other in the ratio:
4:1
3:1
2:1
1:1
The median bisecting the base of an isosceles triangle is.................to the base.
parallel
perpendicular
collinear
adjacent
The kind of triangle which has two equal sides is
exterior angle
equilateral triangle
isosceles triangle
scalene triangle
The internal bisectors of the angles of a triangle meet at a point called the...............of the triangle.
In centre
Ortho centre
Circumcentre
None
The diagonals of a parallelogram each other:
Bisect
Trisect
Bisect at right angle
None of these
The common point of three or more than three lines is called
central point
point of concurrency
vertex
centroid
The angles opposite to equal sides of a triangle are:
Equal
Unequal
supplementary angles
Complementary angles
The altitudes of a right angled triangle are concurrent at the
Midpoint of hypotenuse
Vertex of right angle
Midpoint of base
Vertical angle
Sum of interior angles of a triangle is
60o
120o
180o
240o
Sum of all the interior angles of a triangle is.
90o
150o
180o
360o
Similar triangles are of the same shape but.........in sizes.
The same
Different
Both a and b
None of these
Point of concurrency of three medians of a triangle is called.
In centre three
Ortho centre
Centroid
Circumcentre
One angle on the base of an isosceles triangle is 30o. What is the measure of its vertical angle:
90o
120o
30o
60o
Medians of triangle are
congruent
parallel
equal
concurrent
Median bisecting the base angle of an isosceles triangle bisects the..............angle.
right
acute
base
vertical
In-centre is the point of concurrency of three............of triangle.
Altitudes
Medians
Right bisectors
Angle bisectors
In SAS congruency:
Two corresponding sides and angle included are equal
None of these
Corresponding sides are equal
Corresponding angles are equal
In right-angled triangle if one angle is 60o, then other angle will be
45o
60o
15o
30o
In right-angled triangle if one angle is 30o, then other angle will be
45o
60o
15o
30o