CHAPTER 4 GEOMETRY

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

• Exterior angles

• Interior opposite angles

• Alternate angles

• Interior angles

In the quadrilateral ABCD, AB = BC and AD = DC Measure of ∠BCD is

• 150°

• 30°

• 105°

• 72°

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

• 6

• 8

• 4

• 12

In the given figure CE || DB then the value of x° is

• 45°

• 30°

• 75°

• 85°

The correct statement out of the following is

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

• Parallelogram but not a rectangle

• Rectangle but not a square

• Square

• Parallelogram but not a square

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

• ∠C + ∠D

The interior angle made by the side in a parallelogram is 90° then the parallelogram is a

• rhombus

• rectangle

• trapezium

• kite

Which of the following statement is correct?

• Opposite angles of a parallelogram are not equal.

• Adjacent angles of a parallelogram are complementary.

• Diagonals of a parallelogram are always equal.

• Both pairs of opposite sides of a parallelogram are always equal.

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

• 40°

• 35°

• 50°

• 45°