Advertisements
Advertisements
प्रश्न
Mohit makes 8 full rounds of a rectangular field with length = 120 m and breadth = 75 m.
John makes 10 full rounds of a square field with each side 100 in. Find who covers larger distance and by how much?
Advertisements
उत्तर
Mohit
Length of the rectangular field = 120 m
Breadth of the rectangular field = 75 m
∴ Distance covered in one round (perimeter)
= 2(1 + b) = 2(120 + 75) = 390 m
Hence, distance covered in 8 rounds = 390 x 8 m = 3120 m
John
Side of the field = 100 m
∴ Distance covered in one round = 4 x a = 4 x 100 = 400 m
Hence, Distance covered in 10 rounds = 400 x 10 m = 4000 m
John a covers greater distance then Mohit by = (4000 - 3120) m = 880 m
APPEARS IN
संबंधित प्रश्न
A school playground is rectangular in shape with length = 120 m and breadth = 90 m. Some school boys run along the boundary of the play-ground and make 15 complete rounds in 45 minutes. How much distance they run during this period.
An equilateral triangle and d square has equal perimeter. If side of the triangle is 9.6 cm ; what is the length of the side of the square?
Each side of a square is 45 cm and a rectangle has length 50 cm. If the perimeters of both (square and rectangle) are same, find the breadth of the rectangle.
The perimeter of a square field is numerically equal to its area. Find each side of the square.
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.
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?
The length of a rectangle is three times its breadth. If its perimeter is 64 cm, find the sides of the rectangle
If a wire in the shape of a square is rebent into a rectangle, then the ______ of both shapes remain same, but ______ may varry.
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.
Why is the perimeter of a rectangle calculated as 2 × (length + breadth)?
