Advertisements
Advertisements
Question
The length and the breadth of a rectangular plot are 135 m and 65 m. Find, its perimeter and the cost of fencing it at the rate of ₹60 per m.
Advertisements
Solution
Given:
Length (l) = 135 m
Breadth (b) = 65 m
Perimeter = 2 (l + b)
= 2 (135 + 65)
= 2 (200)
= 400 m
∴ Perimeter of rectangular plot is = 400 m
Cost of fencing per m = ₹60
∴ Cost of fencing 400 m = ₹60 × 400 m = ₹24000
APPEARS IN
RELATED QUESTIONS
A square and a rectangular field with measurements as given in the figure have the same perimeter. Which field has a larger area?
A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm. How many such tiles are required to cover a floor of area 1080 m2? (If required you can split the tiles in whatever way you want to fill up the corners).
An ant is moving around a few food pieces of different shapes scattered on the floor. For which food − piece would the ant have to take a longer round? Remember, circumference of a circle can be obtained by using the expression c = 2πr, where r is the radius of the circle.
A playground has the shape of a rectangle, with two semi-circles on its smaller sides as diameters, added to its outside. If the sides of the rectangle are 36 m and 24.5 m, find the area of the playground. (Take π = 22/7).
Find the area of Fig. 20.25, in square cm, correct to one place of decimal. (Take π = 22/7)
The diameter of a wheel of a bus is 90 cm which makes 315 revolutions per minute. Determine its speed in kilometres per hour. [Use π = 22/7]
The length and breadth of a rectangular field are in the ratio 7 : 4. If its perimeter is 440 m, find its length and breadth. Also, find the cost of fencing it @ ₹150 per m.
The area of a parallelogram is 60 cm2 and one of its altitudes is 5 cm. The length of its corresponding side is ______.
The perimeter of a rectangle becomes ______ times its original perimeter, if its length and breadth are doubled.
The length of an aluminium strip is 40 cm. If the lengths in cm are measured in natural numbers, write the measurement of all the possible rectangular frames which can be made out of it. (For example, a rectangular frame with 15 cm length and 5 cm breadth can be made from this strip.)
