Advertisements
Advertisements
Question
Find the perimeter of a regular pentagon of side 8.2 cm.
Advertisements
Solution
Perimeter of given pentagon = 5 x side = 5 x 8.2 cm = 41 cm
APPEARS IN
RELATED QUESTIONS
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?
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.
Find the perimeter of the following figure

Each rectangle is made out of 12 equal squares, so all have the same area, but the length of the boundary will be different.
Which of these rectangles has the smallest perimeter?
What is the perimeter of the following figures? What do you infer from the answers?
![]() (a) |
![]() (c) |
![]() (b) |
![]() (d) |
In the following figure, a rectangle with perimeter 264 cm is divided into five congruent rectangles. Find the perimeter of one of the rectangles.

A large square is made by arranging a small square surrounded by four congruent rectangles as shown in the following figure. If the perimeter of each of the rectangle is 16 cm, find the area of the large square.

What is the correct formula for the perimeter of a rectangle with length (l) and breadth (b)?




