Question

The perimeter of a rectangular park is 150 cm. if the length is 40 cm, find its bredth. also find its area.​

Answer 1

Step-by-step explanation:

Answer:

Step-by-step explanation:

\begin{gathered}2(l+b)=150\\2(40+b)= 150\\2b=70\end{gathered}

2(l+b)=150

2(40+b)=150

2b=70

\begin{gathered}b=35cm\\\\area= 40*35\\= 1400cm^{2}\end{gathered}

b=35cm

area=40∗35

=1400cm

2

Answer 2

Answer:

perimeter of a triangle is 2(l+b)

so

perimeter-2(40+b)

150=80+2b

so

2b=70

b=35

area=l×b

area=40×35

area=1400