It is not possible to construct a triangle when its sides are ____________

(a)

8.2 cm, 3.5 cm, 6.5 cm

(b)

6.3 cm, 3.1 cm, 3.2 cm

(c)

7 cm, 8 cm, 10 cm

(d)

4 cm, 6 cm, 6 cm

The exterior angle of a triangle is equal to the sum of two ________.

(a)

Exterior angles

(b)

Interior opposite angles

(c)

Alternate angles

(d)

Interior angles

ABCD is a square, diagonals AC and BD meet at O. The number of pairs of congruent triangles with vertex O are ________.

(a)

6

(b)

8

(c)

4

(d)

12

In the given figure CE || DB then the value of x⁰ is  ________.

(a)

45°

(b)

30°

(c)

75°

(d)

85°

The correct statement out of the following is ________.

(a)

ΔABC ≅ ΔDEF

(b)

ΔABC ≅ ΔDEF

(c)

ΔABC ≅ ΔFDE

(d)

ΔABC ≅ ΔFED

If the diagonal of a rhombus are equal, then the rhombus is a ________.

(a)

Parallelogram but not a rectangle

(b)

Rectangle but not a square

(c)

Square

(d)

Parallelogram but not a square

If bisectors of ∠A and ∠B of a quadrilateral ABCD meet at O, then ∠AOB is ________.

(a)

∠C + ∠D

(b)

\(\frac { 1 }{ 2 } (\angle C+\angle D)\)

(c)

\(\frac { 1 }{ 2 } \angle C+\frac { 1 }{ 3 } \angle D\)

(d)

\(\frac { 1 }{ 3 } \angle C+\frac { 1 }{ 2 } \angle D\).

The angles of the triangle are 3x–40, x+20 and 2x–10 then the value of x is ________.

(a)

40°

(b)

35°

(c)

50°

(d)

45°

What is the name of a regular polygon of six sides?

(a)

Square

(b)

Equilateral triangle

(c)

Regular hexagon

(d)

Regular octagon

One angle of a parallelogram is a right angle. The name of the quadrilateral is ______

(a)

square

(b)

rectangle

(c)

rhombus

(d)

kite

If all the four sides of a parallelogram are equal and the adjacent angles are of 120° and 60°, then the name of the quadrilateral is ______

(a)

rectangle

(b)

square

(c)

rhombus

(d)

kite

In a parallelogram \(\angle{A}:\angle{B}=1:2\) Then ㄥA ............

(a)

30°

(b)

60°

(c)

45°

(d)

90°

Which of the following is a formula to find the sum of interior angles of a quadrilateral of n-sides?

(a)

\(\frac { n }{ 2 } \) \(\times\) 180

(b)

\(\left( \frac { n+1 }{ 2 } \right) \)180⁰

(c)

\(\left( \frac { n-1 }{ 2 } \right) \)180^o

(d)

(n-2)180^o

Diagonal of which of the following quadrilaterals do not bisect it into two congruent triangles?

(a)

rhombus

(b)

trapezium

(c)

square

(d)

rectangle

The point of concurrency of the medians of a triangle is known as __________

(a)

circumcentre

(b)

incentre

(c)

orthocentre

(d)

centroid

Find the complement of the following angles (1°= 60′ minutes, 1′ = 60′′ seconds)
70°

Find the complement of the following angles (1°= 60′ minutes, 1′ = 60′′ seconds)
 27°

Find the complement of the following angles (1°= 60′ minutes, 1′ = 60′′ seconds)
45°

Find the supplement of the following angles.
Right angle

Find the supplement of the following angles.
121°48′

Let m || n and l is a transversal Such that ∠1 : ∠2 = 11 : 7. Determine all the eight angles.

In the figure, AB is parallel to CD, find x

In the figure, AB is parallel to CD, find x

Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:

Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:

The angles of a quadrilateral are in the ratio 2 : 4 : 5 : 7. Find all the angles.

In a quadrilateral ABCD, ∠A = 72° and ∠C is the supplementary of ∠A. The other two angles are 2x–10 and x + 4. Find the value of x and the measure of all the angles.