Question

If the perimeter of a rectangle is 90 m and length is 30 m then the breadth is ________​

Answer 1

As we know

$\sf \: Perimerer_{(Rectangle)}=2(l+b)$

According To Question

$\sf \: Perimerer_{(Rectangle)}=2(30+b) = 90$

$\sf \: Perimerer_{(Rectangle)}=2(30+b) = 90$

$\sf \: Perimerer_{(Rectangle)}= 45=b + 30$

$\sf \: Perimerer_{(Rectangle)} = b = 45 - 30$

$\sf \: Perimerer_{(Rectangle)} = \red{b = 15}$

Hence,Breadth is 15m.

✅Verification✨

$\sf \: Perimerer_{(Rectangle)}=2(l+b)$

$\sf \: Perimerer_{(Rectangle)}=2(30+15)$

$\sf \: Perimerer_{(Rectangle)}=90$

Hence Verified✅

Answer 2

Answer:

As we know

According To Question

Hence,Breadth is 15m.

✅Verification✨

Hence Verified✅

Step-by-step explanation: