Question

solve the following problems
1) The perimeter rectangular sheet is 100cm . If length is 35 cm. find its breadth & also find its area ? ​

2) If the circumference of a circular sheet is 154 cm , find its radius & also find the area of the sheet ? (n = 22/7)​

3) From a circular sheet of radius 4cm , a circle of radius 3 cm is removed , find the area of remaining sheet (n=3.14)

4) How many times a wheel of radius 28 cm must rotate to go 352 m? ( n=22/7)

5) A picture is painted on a cardboard 8cm long & 5cm wide , such that there is a margin of 1.5 cm along each of sides . find the total area of margin ?

6) A wire is in the shape of a rectangle , its length is 40 cm & breadth is 22cm . if the same wire is rebent in the shape of a square , what will be the measure of each side , also find which shape encloses more area ? ​

Answer 1

Answer:

1 solution :

length of rectangular sheet = 35cm .

breadth of rectangular sheet b = ?

given ,

perimeter of rectangular sheet= 100cm.

2( l+b) = 100

2(35+b )= 100

35+ b = 100/2

b= 50-35

b= 15cm.

Answer 2

Step-by-step explanation:

ए पिक्चर इज सेंटर ऑफ ए रैक्टेंगल शीट इज अंदर सेंटीमीटर इज द लेंथ ऑफ 34 सेंटीमीटर फाइंड इट्स फाइंड द एरिया