Question

4. If each side of square will be doubled, then
its perimeter will be
[JNV 2014]
(1) 2 times
(2) 3 times
3) 4 times
(4) 8 times
5. The perimeter of a square park is 72 m,
then the area of the square is [JNV 2013]
(1) 144 sqm
(2) 2376 sqm
(3) 1296 sqm
(4) 324 sqm
Find the breadth of a room whose floor
area is 363 sq m and length is 33 m.
[JNV 2012]
(1) 33 m
(2) 24 m​

Answer 1

Answer:

4. (2)3times

5.(4)324sqm

6. 11m will be the perfect answer

Step-by-step explanation:

this answer will be helpful for you

Answer 2

4) If each side is square is doubled, the perimeter (the distance around it) is also double.

1) 2 times

Explaination:

Let each side of a square is x cm. Its

Perimeter (p1)=4.x cm……………(1)

New length of each side =2x cm.

Perimeter (p2)=4×2x cm.

p2=8x cm………………. ……………(2)

Divide equation .(2) by (1)

p2/p1=8x/4x

p2/p1=2

or p2=2p1

New perimeter also will be doubled .

5. Answer: d) 324 m2.

Explanation:

Let the side of the square be a m.

Then, perimeter of square = 4a m

⇒ 72 = 4a

⇒ a = 724

= 18 m

Thus, area of square = a2 m2

= (18 × 18) m2

= 324 m2.

6. Find the breadth of a room whose floor

area is 363 sq m and length is 33 m.

Answer : 11 m.