English Medium इयत्ता ९ - CBSE Question Bank Solutions

The chord of a circle is equal to its radius. The angle subtended by this chord at the minor arc of the circle is

PQRS is a quadrilateral, PR and QS intersect each other at O. In which of the following case, PQRS is a parallelogram?

∠P = 100°, ∠Q = 80°, ∠R = 95°

We get a rhombus by joining the mid-points of the sides of a

The figure formed by joining the mid-points of the adjacent sides of a rhombus is a

The figure formed by joining the mid-points of the adjacent sides of a parallelogram is a

ABCD is a parallelogram in which diagonal AC bisects ∠BAD. If ∠BAC = 35°, then ∠ABC =

P is the mid-point of side BC of a parallelogram ABCD such that ∠BAP = ∠DAP. If AD = 10 cm, then CD =

In a quadrilateral ABCD, ∠A + ∠C is 2 times ∠B + ∠D. If ∠A = 140° and ∠D = 60°, then ∠B=

Name the smallest angle in each of these triangles:
In ΔXYZ, XY = 6.2cm, XY = 6.8cm and YZ = 5cm

Which of the following is equal to x?

If  `a = 2 + sqrt(3)`, then find the value of `a - 1/a`.

Simplify:

`(1^3 + 2^3 + 3^3)^(1/2)`

Simplify:

`(3/5)^4 (8/5)^-12 (32/5)^6`

Simplify:

`(9^(1/3) xx 27^(-1/2))/(3^(1/6) xx 3^(- 2/3))`

Which one of the following is a polynomial?

The value of 249² – 248² is ______.

The coefficient of x in the expansion of (x + 3)³ is ______.