Question

Perimeter and Area

1) Find the area and perimeter of a rectangle whose length is 20cm and breath is 35cm

2) find the area and permiter of a square with side 80m

ANSWER.

1Ans = perimeter of rectangle 2×(l×b)
2×(20×35)
2×55=110

Area of rectangle. l×b
20×35=700


2Ans = Area of square. Side×Side
80×80=6480m

Perimeter of square 4×80=320​

Answer 1

Answer:

Let length=l, breadth=b of rectangle

⇒ Perimeter=2(l+b)

⇒100=2(35+b)

⇒50=35+b

⇒b=15cm

Area=lb=35×15=525cm

2

.

Answer 2

Step-by-step explanation:

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