Question

9. A wire is in the shape of a rectangle Its length is 12 cm and breadth is in em. If the same
nebent in the shape of a square, what will be the measure of each side? Also find which
encloses more area.
10. A door of length 2 m and breadth 15 mis on a wall. The length of the wall is 45 m and bra
is 3.6 m. Find the cost of white-washing the wall at the rate of 20 per mi
11. A school room is 12 m long, 8 m wide and 5 m high. Find the area of its four walls
12. A hall is 25 m long, 10 m wide and 5 m hlych Its walls and the roof an to be white
inside. Find the total area to be white washed
13. A room is 6.2 m long, 3.8 m wide and 3.2 m high. It has 2 doors each 2 m 12 m and 2 windo
each 1.2 m 15 m Find the cost of white washing its walls at the rate of operare
14. A marble tile measures 10 cm x 14 cm. How many tiles will be required to
2.8 mx 4 m
15. A rectangular room of size 5 m x 35 dm is to be carpeted with a capet 7 de wide Ped the leng
of the carpet required
AREA OF TRIANGLE
A. Area of a Right Angled Triangle
Let ABCD be a rectangle​

Answer 1

Answer:

here is your answer mate...

Step-by-step explanation:

According to the question,

Perimeter of square=Perimeter of rectangle

⇒4× side=2(length+breadth)

⇒4×side=2(40+22)

⇒4×side=2×62

⇒ side=  2×62/4

=31cm

Thus, the side of the square is 31cm.

Now, Area of rectangle=length×breadth=40×22=880cm  2

 

And Area of square=side×side=31×31=961cm  2

 

Therefore, on comparing, the area of square is greater than that of rectangle.

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