Advertisements
Advertisements
प्रश्न
The perimeter of a rectangular field is 500 m and its length = 150 m. Find:
(i) its breadth,
(ii) its area.
(iii) cost of ploughing the field at the rate of ₹1.20 per square meter.
Advertisements
उत्तर
(i) Perimeter of a rectangle = 2 x (length + breadth)
⇒ 500 m = 2 x (150 m + breadth)
⇒ 250 m – 150 m = breadth
∴ breadth = 100 m
(ii) Area of rectangular field = length x breadth
= 150 m x 100 m
= 15000 m²
(iii) Cost of ploughing the field at the rate of
= ₹ 1.20 per square m²= area of the field x rate of ploughing
= 15000 m² x ₹ 1.20 per square metre
= ₹ 15000 x 1.20 = ₹ 18000
APPEARS IN
संबंधित प्रश्न
The area of a small rectangular plot is 84 m2. If the difference between its length and the breadth is 5 m; find its perimeter.
A rectangular field is 30 m in length and 22m in width. Two mutually perpendicular roads, each 2.5 m wide, are drawn inside the field so that one road is parallel to the length of the field and the other road is parallel to its width. Calculate the area of the crossroads.
Find the perimeter of an equilateral triangle of side 9.8 cm.
If A denotes area of a rectangle, l represents its length and b represents its breadth, find:
l, if A = 48 cm² and b = 6 cm
A game requires its players to run around a square playground. Each side of the playground is 20 m long. One player took 5 rounds around the playground. How many metres did he run altogether?
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) |
What is the perimeter of a rectangle?
A rectangle has length 15 cm and breadth 9 cm. What is its perimeter?
