Question

to 20736 sq. m.
5
sq. m.
respectively. Find the height of the wall.
If the length of the rectangle is 16 m, find its breadth.
windows each of dimensions 1.5 m by 1 m. Find the cost of whitewashing the walls at 33.20 per squa
the sides of the square ABCD.
10. The sides of a rectangular park are in the ratio 4 : 3. If its area is 2028 sq. m, find the cost of fencing
it at 3 per metre.
11. The area of four walls of a room is 150 m². If the length of the room is twice its breadth and the height
is 4 m, find the area of the floor.
12. A rectangular room 5.6 m * 4.8 m is to be carpeted with a carpet 80 cm wide. Find the length of the
carpet required.
13. The cost of levelling a rectangular garden at 3.50 per sq. m is 8400. Its length and breadth are in
ratio 3 : 2. Find the perimeter of the garden.
TRIANGLES AS PART OF RECTANGLES
a diagonal divides a rectangle into two equal parts (triangle). Consider a rectangle A
BCD. The diagonal BD divides the rectangle into two congruent triangles viz. ABAD
och triangle, we find the area of rectangle ABCD and
Find the perimeter of a rectangular field whose length is 4 times its width and which has area equal
One side of a square field is 92 m. Find the cost of raising a lawn on the field at the rate of 150 per
6. The area of four walls of a hall is 266 sq. m. The length and breadth of the hall are 12 m and 7
7. The perimeter of a square is 56 m. The area of rectangle is 8 sq. m. less than the area of the given square
8. A room is 8 m long, 6 m broad and 5.5 m high. It has one door of dimensions 2.5 m by 2 m and to
9. The area of a square ABCD is 64 sq. cm. Find the area of square obtained by joining the mid-points of​

Answer 1

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Area of rectangle = length x breadth

Area of square = side^2

Let the length of side of the square be 'a'.

⇒ Area of square = area of rect.

⇒ a^2 = 4 cm x 9 cm

⇒ a^2 = 36 cm^2

⇒ a = √36cm^2

⇒ a = 6 cm

Length of side of the square is 6 cm

Answer 2

Step-by-step explanation:

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