Secondary School (English Medium) (5 to 8) इयत्ता ७ - CBSE Question Bank Solutions

Without drawing the triangles write all six pairs of equal measures in the following pairs of congruent triangles.

∆XYZ ≅ ∆MLN

On a number line, `(-1)/2` is to the ______ of zero (0).

On a number line, `4/3` is to the ______ of zero (0).

The rational number `(-3)/4` lies to the right of zero on the number line.

The rational numbers `(-12)/(-5)` and `(-7)/17` are on the opposite sides of zero on the number line.

Represent the following rational numbers on a number line:

`3/8, (-7)/3, 22/(-6)`

Find a rational number exactly halfway between:

`(-1)/3` and `1/3`

Find a rational number exactly halfway between:

`1/6` and `1/9`

Find a rational number exactly halfway between:

`5/(-13)` and `(-7)/9`

Find a rational number exactly halfway between:

`1/15` and `1/12`

Find the odd one out of the following and give reason.

If each side of a rhombus is doubled, how much will its area increase?

In the following figure, area of (i) is the same as the area of (ii).

(i)	(ii)

In the following figure, perimeter of (ii) is the same as (i).

(i)	(ii)

In the following figure, if (ii) is divided into squares of unit length, then its area is 13 unit squares.

(ii)

In the following figure, perimeter of (ii) is 18 units.

(ii)

Two figures can have the same area but different perimeters.

Three squares are attached to each other as shown in the following figure. Each square is attached at the mid-point of the side of the square to its right. Find the perimeter of the complete figure.

–b – 0 is equal to ______.

The value of 3x² – 5x + 3 when x = 1 is ______.