Advertisements
Advertisements
Question
Rectangle MNOP is made up of four congruent rectangles (see figure). If the area of one of the rectangles is 8 m2 and breadth is 2 m, then find the perimeter of MNOP.
Advertisements
Solution
We have, area of one rectangle = 8 m2
And breadth = 2 m
We know that,
Area of rectangle = l × b
⇒ l × b = 8
⇒ l × 2 = 8
⇒ l = 4 m
Now, we have to find the perimeter of MNOP, which contains four congruent rectangles, it means they have same length and breadth.
∴ Perimeter of rectangle MNOP = MN + NC + CD + DO + PO + PF + FA + MA
= 4 + 2 + 4 + 2 + 4 + 2 + 4 + 2
= 24 m
Hence, the perimeter of MNOP is 24 m.
APPEARS IN
RELATED QUESTIONS
The length and the breadth of a rectangular field are in the ratio 5: 4 and its area is 3380 m2. Find the cost of fencing it at the rate of ₹75 per m.
Find the perimeter of a rectangle whose:
length = 40 cm and breadth = 35 cm
Find the perimeter of a rectangle whose:
length = 3.6 m and breadth = 2.4 m
A rectangular field has length = 160m and breadth = 120 m. Find:
(i) the perimeter of the field.
(ii) the length of fence required to enclose the field.
(iii) the cost of fencing the field at the rate of? 80 per meter.
How much wire will be needed to make a rectangle 7 cm long and 4 cm wide?
Four rounds of wire fence have to be put around a field. If the field is 60 m long and 40 m wide, how much wire will be needed?
Find the perimeter of the following figure
What is the perimeter of the following figures? What do you infer from the answers?
 (a) |
 (c) |
 (b) |
 (d) |
36 unit squares are joined to form a rectangle with the least perimeter. Perimeter of the rectangle is ______.
A rectangle has length 15 cm and breadth 9 cm. What is its perimeter?
