Question

3. Find the perimeter of the square of side 'a' unit. What will be the perimeter if its side becomes 2a' unit?
4. The perimeter of a rectangular park is 189 m. If its breadth is 31.25 m, find its length.
5. What is the length of wooden strip required to frame a photograph of length 33 cm and breadth
19 cm?
5. Mr. Kapoor bought a land of length 0.9 km and width 0.5 km. If each side of this rectangular land is
to be fenced with 3 rows of wires, what is the length of wire required to do so?
· Saloni runs around a square park of side 85 m whereas Roja runs around a triangular park of each side
90.5 m. Who covers less distance?​

Answer 1

Answer:

3. side=a

permeter of square =4×a= 4a

If side=2a

then,

Perimeter = 4×2a= 8 a