Question

if you have length of 25 cm and perimeter of 90 cm find the breadth and area​

Answer 1

Answer:

2(l+b)=p

2(25+b)=90

b=45-25=20

b=20

area=a=lb=25*20=500

Answer 2

Answer:

$length = 25cm \\ perimeter = 90cm \\ so \: breadth \: = 2(l + b) \\ 2(25 + b) = 90 \\ 50 + b = 90 \\ b = 90 - 30 = 60cm \\ \\ area \: = l \times b \\ 25 \times 60 = 150cm {}^{2}$

Hope it helps you