Advertisements
Advertisements
प्रश्न
Bajinder runs ten times around a square track and covers 4 km. Find the length of the track.
उत्तर
Let a be the side of the square track.
Perimeter of the square track = 4a
Bajinder runs ten times around the square track and covers 4 km.
i.e., 10 × 4a = 4 km
⇒ 40a = 4 × 1000 m .....[∵ 1 km = 1000 m]
⇒ `a = (4 xx 1000)/40` m = 100 m
∴ Length of the track = 4a
= 4 × 100 m
= 400 m
APPEARS IN
संबंधित प्रश्न
The perimeter of a square is numerically equal to its area. Find its area.
The perimeter of a square is 36 cm; find its area
Draw a square B whose side is twice of the square A. Calculate the perimeter of the squares A and B
Find the perimeter of the following figure
Find the side of the square whose perimeter is 20 m.
Find the cost of fencing a square park of side 250 m at the rate of ₹ 20 per metre.
If each side of a rhombus is doubled, how much will its area increase?
In the given figure, perimeter of (ii) is the same as (i).
 |
 |
| (i) | (ii) |
In the given figure, if (ii) is divided into squares of unit length, then its area is 13 unit squares.
|
| (ii) |
In the given figure, perimeter of (ii) is 18 units.
|
| (ii) |
