Advertisements
Advertisements
प्रश्न
Find the perimeter of an equilateral triangle of side 9.8 cm.
Advertisements
उत्तर
The perimeter of equilateral triangle = 3 x side
= 3 x 9.8 cm
= 29.4 cm
APPEARS IN
संबंधित प्रश्न
Each side of a rectangle is doubled. Find the ratio between :
(i) perimeters of the original rectangle and the resulting rectangle.
(ii) areas of the original rectangle and the resulting rectangle.
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.
A regular pentagon of each side 12 cm has same perimeter as that of a regular hexagon. Find the length of each side of the hexagon.
The perimeter of a square is 60 m, find:
(i) its each side its area
(ii) its new area obtained on increasing
(iii) each of its sides by 2 m.
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.
If the length of a rectangle is 20 m and its width is 12 m, what is its perimeter?
Sanju completes 12 rounds around a square park every day. If one side of the park is 120 m, find out in kilometres and metres the distance that Sanju covers daily.
If every side of a rectangle is doubled, then its area becomes _______ times
How many different rectangles can be made with a 48 cm long string? Find the possible pairs of length and breadth of the rectangles.
Find the perimeter of a rectangle, whose sides are 12 cm and 8 cm
