Question

All question solve please ​ jo bhi 1st main Karega usko main brain list karuanga plz......

Answer 1

Answer:

Step-by-step explanation:

Your fourth answer is here :-

Let length = x cm, and b= y cm

Area = xy

100 = xy

Perimeter = 2x + 2y

40 = 2x + 2y

x + y = 20. eq 1

(x-y)2 = (x+y)2 - 4xy

= (20)2 - 4(100)

400 - 400

x-y = 0. Eq 2

Adding eq 1 & 2,

x = 10 cm & y = 10 cm

Answer 2

Answer:

Step-by-step explanation:

56 cm perimeter and 180 cm square area