Question

1.Find the area of square of side 10 CM .and 20 CM.
2.Find the area of rectangle of length 25 cm and breadth 13 cm
3 Find the area of rhombus of diagonals 40 cm and 22 cm
4. Find the area of parallelogram of a base 10 cm and height 5 cm
5. write any four properties of square , parallelogram , rectangle, rhombus , kite
6. Define square rectangle , rhombus , trapezium kite , quadrilateral.
7. Draw the the chart of quadrilaterals
8. Write the formula to find the area of equilateral triangle.
9. Write the formula to find area of triangle ,trapezium , quadrilateral , rhombus , parallelogram , square and rectangle
10. Find the area of triangle whose base is 10 cm and height is 7 cm​

Answer 1

(2): Given:

length of rectangle =25 cm.

breadth of rectangle =13cm.

area of rectangle = length × breadth = 25×13= 325cm^2..

(3): area of rhombus =1/2× product of its diagonals

=1/2×40×22

= 440cm^2

(4): we know that area of parallelogram = base× height

=10×5

=50cm^2

(5) four properties of square are as follows:

(a): All four sides of a square are equal.

(b): The diagonals of a square bisect its angles.

(c): Opposite sides of a square are both parallel and equal in length.

(d): The diagonals of a square bisect each other and meet at 90°.

☆ Four properties of parallelogram are:

(a): In parallelogram opposite angles are equal.

(b): Diagonals bisect each other.

(c): Sum of any two adjacent angels is 180°.

(d): Opposite sides are equal and parallel.

☆ Four properties of rectangle are:

(a): The diagonals bisect each other.

(b): Each interior angle is equal to 90°.

(c): Both the diagonals have the same length.

(d): Opposite sides of rectangle are equal and parallel.

☆ Four properties of rhombus are:

(a): Sum of any two adjacent angels is 180°.

(b): Diagonals bisect each other perpendicularly.

(c): Opposite angles are equal.

(d): The opposite sides of a rhombus are parallel.

(6): Square:- A square is closed , two dimensional shape with four equal sides.

☆Rectangle:- A rectangle is a four sided polygon , having all the internal angles equal to 90°.

☆Rhombus:- A rhombus is a quadrilateral whose four sides all have the same length.

☆ Trapezium:- It is a type of quadrilateral which has only two parallel sides and the other two sides are non parallel.

☆ Quadrilateral: A figure bounded by four line segments is called a quadrilateral.

A quadrilateral has 4 sides and 4 vertices.

(10):- area of triangle = 1/2× base× height

=1/2×10×7

= 35cm^2.