The sides of a triangle have length (in cm) 10, 6.5 and a, where a is a whole number. The minimum value that a can take is

1

(a)

6

(b)

5

(c)

3

(d)

4

If the exterior angle of a triangle is 130° and its interior opposite angles are equal, then measure of each interior opposite angle is

1

(a)

55°

(b)

65°

(c)

50°

(d)

60°

In a\(\triangle ABC\), AD is the bisector of \(\angle A\) meeting BC at D,CF⊥AB and E is the mid-point of AG. Then, median of the triangle is

1

(a)

AD

(b)

BE

(c)

FC

(d)

DE

In a triangle ABC,\(\angle \)A+, \(\angle \)B+, \(\angle \)C=

1

(a)

360°

(b)

90°

(c)

180°

(d)

60°

Least number of possible acute angles in a triangle is:

1

(a)

0

(b)

1

(c)

2

(d)

3

In the following figure, value of x is___________.

1

(a)

90°

If one angle of a triangle is equal to the sum of other two, then the measure of that angle is_____________.

1

(a)

90^°

Every triangle has atmost____________obtuse angles.

1

(a)

one

Two rectangles are congruent, if they have same ________ and________.

1

(a)

Length, breadth

Two squares are congruent, if they have same_________.

1

(a)

Side

Sum of any two angles of triangle is always greater than the third angle.

1

(a) True

(b) False

Sum of the measures of three angles of a triangle is greater than 180°.

1

(a) True

(b) False

It is possible to have a right angled equilateral triangle.

1

(a) True

(b) False

It is possible to have a triangle in which each angle is less than 60°.

1

(a) True

(b) False

The difference between the length of any two sides of a triangle is smaller than the length of third side.

1

(a) False

(b) True

In a right triangle, what is the measure of its greatest angle?

3

(a)

90°

An exterior angle of a triangle is 140°. What is the measure of its interior adjacent angle?

3

(a)

40°

What is the sum of angles of a triangle?

3

(a)

180°

Draw rought sketches of \(\triangle PQR\),where QE is a median.

3

(a)

Draw rough sketch of altitude from A to \(\bar { BC } \) for the following given triangles.

3

(a)

Verify by drawing a diagram, if the median and altitude of an isosceles triangle can be same.

5

(a)

Find angles x and y in each figure.

5

(a)

Look at following figures and classify each of the triangles according to its

5

(a)

Show that the sum of the exterior angles of \(\triangle\)ABC as shown in the figure is 360°.

5

(a)